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Lepidium latifolium

(Broad-Leaf Pepper-Grass)

Overview

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Interesting Facts

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Common Names

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Click on the language to view common names.

Common Names in Chinese:

Kuan Ye Du Xing Cai

Common Names in English:

Broad-Leaf Pepper-Grass, Broad-Leaf Peppergrass, Broad-Leaf Pepperweed, Broad-Leaf Pepperwort, Broad-Leaved Pepper-Grass, Broad-Leaved Pepperweed, Broadleaf Pepperweed, Broadleaved Peppergrass, Broadleaved Pepperweed, Dittander Lepidium Latifolium, Peppergrass, Peppergrass Mustard, Perennial Pepper-Grass (Canada), Perennial Peppercress, Perennial Peppergrass, Perennial Pepperweed, Perennial Pepperwort, Tall Whitetop, Virginia Pepperweed

Common Names in French:

Grande Passerage, Lépidie à Feuilles Larges (Canada)

Common Names in German:

Breitblättrige Kresse

Common Names in Italian:

Lepidio Latifoglio

Common Names in Portuguese:

Erva-Pimenteira, Mostarda-Perene

Common Names in Spanish:

Lepidio, Mastuerzo Montesino, Piperisa

Description

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Genus Lepidium

Herbs annual , biennial, or perennial , sometimes subshrubs , rarely shrubs or climbers . Trichomes absent or simple . Stems erect or ascending , sometimes creeping , simple or branched basally and/or apically. Basal leaves rosulate or not, simple, entire or pinnately dissected . Cauline leaves petiolate or sessile, base cuneate, attenuate, auriculate , sagittate , or amplexicaul , margin entire, dentate , or dissected. Racemes ebracteate , corymbose , elongated or not in fruit. Fruiting pedicels terete , flattened, or winged , erect or divaricate . Sepals ovate or oblong , rarely orbicular , base of lateral pair not saccate . Petals white, yellow, or pink, erect or spreading , sometimes rudimentary or absent; blade obovate , spatulate , oblong, oblanceolate , orbicular, linear , or filiform , apex obtuse , rounded , or emarginate ; claw absent or distinct . Stamens 2 and median , sometimes 6 and tetradynamous or subequal in length , rarely 4 and all median or 2 median and 2 lateral; anthers ovate or oblong. Nectar glands 4 or 6, distinct; median glands always present. Ovules 2 per ovary; placentation apical. Fruit dehiscent silicles , oblong, ovate, obovate, cordate, obcordate , elliptic , or orbicular, strongly angustiseptate; valves veinless or prominently veined, keeled or not, apically winged or wingless; replum rounded; septum complete or perforated, membranous; style absent, obsolete , or distinct, included or exserted from apical notch of fruit; stigma capitate, entire or rarely 2-lobed. Seeds 1 per locule, winged, margined , or wingless, oblong or ovate, plump or flattened; seed coat smooth , minutely reticulate , or papillate , usually copiously mucilaginous when wetted; cotyledons incumbent , rarely accumbent or diplecolobal.

About 180 species: all continents except Antarctica; 16 species (two endemic, two introduced ) in China.[1]

Physical Description

Species Lepidium latifolium

Herbs perennial , (20-) 35-120(-150) cm tall. Stems erect , many branched above, slightly woody at base , glabrous or pubescent , often glaucous. Leaves leathery; petiole of basal and lower cauline leaves 1-7(-11) cm; leaf blade elliptic-ovate or oblong , (2-) 3.5-15(-25) × (0.5-) 1.5-5(-8) cm, glabrous or pubescent with usually curved trichomes , base attenuate, margin usually serrate, apex obtuse to subacute . Upper cauline leaves subsessile or sessile; leaf blade elliptic-ovate, oblong, or lanceolate, 1-9 × 0.3-4.5 cm, base cuneate, not auriculate , margin serrate or entire, apex acute. Infructescence paniculate , ultimate branches subcapitate . Fruiting pedicels slender, 2-5(-6) mm, glabrous or rarely pubescent. Sepals deciduous, oblong or suborbicular , 1-1.4 × 0.8-0.9 mm, glabrous or pubescent, white at margin and apex. Petals white, obovate , 1.8-2.5 × (0.8-) 1-1.3 mm, apex rounded ; claw 0.7-1 mm. Stamens 6; filaments 0.9-1.4 mm; anthers ovate , 0.4-0.5 mm. Fruit oblong-elliptic, ovate-elliptic, or suborbicular, (1.6-) 1.8-2.4(-2.7) × 1.3-1.8 mm, pubescent or glabrous, not carinate , wingless, base rounded; apical notch absent or obsolete ; style obsolete. Seeds light brown, oblong-ovate, (0.8-) 1-1.3 × 0.7-0.9 mm, compressed , wingless, finely papillate ; cotyledons incumbent . Fl. May-Sep, fr. Jun-Oct. 2n = 24. [source]

The above first record from Sichuan is based on Martin s.n., 30 May 1890 (LE). Forms with subsessile leaves and pubescent fruit are recognized as Lepidium latifolium subsp. or var. latifolium, whereas those with sessile leaves and glabrous fruit have variously been recognized as L. affine, L. latifolium var. affine, and L. latifolium subsp. sibiricum. However, such distinction is artificial, as plants with glabrous and pubescent fruit are often found in the same population. [source]

Habit: Forb/herb

Flowers: Bloom Period: June. • Flower Color: near white, white

Size/Age/Growth

Size: 36-48" tall.

Habitat

Fields , roadsides, slopes , saline meadows; 100-4300 m [2].

Typically found at an altitude of 0 to 5,271 meters (0 to 17,293 feet).[3]

Biology

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Reproduction

Duration: Perennial

Taxonomy

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Synonyms

Cardaria draba chalapensis (L.) O. E. Schulz • Cardaria draba var. repens (Schrenk) O. E. Schulz • L. latifolium affine (Ledebour) Kitagawa • L. latifolium sibiricum Thellung • L. latifolium var. affine (Ledebour) C. A. Meyer • L. sibiricum Schweigger (1812) • Lepidium affine Ledebour • Lepidium lasiocarpum latifolium L. • Lepidium repens (Schrenk) Boiss.

Notes

Name Status: Accepted Name .

Last scrutiny: 2009

Similar Species

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Members of the genus Lepidium

ZipcodeZoo has pages for 142 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them:

L. africanum (African Pepperwort) · L. alyssoides (Mesa Pepperwort) · L. alyssoides Gray var. alyssoides Gray (Mesa Pepperwort) · L. alyssoides Gray var. eastwoodiae (Woot.) Rollins (Eastwood's Pepperweed) · L. alyssoides Gray var. junceum Rollins (Mesa Pepperwort) · L. alyssoides var. alyssoides (Mesa Pepperwort) · L. alyssoides var. angustifolium (Mesa Pepperwort) · L. alyssoides var. eastwoodiae (Eastwood's Pepperweed) · L. alyssoides var. junceum (Mesa Pepperwort) · L. angustifolium (Lepidium Alyssoides Var. Angus) · L. appelianum (Globe-Podded Hoary Cress) · L. arbuscula (Waianae Range Pepperwort) · L. aucheri (Aucher's Pepper-Grass) · L. austrinum (Southern Peppergrass) · L. barnebyanum (Barneby Pepper Grass) · L. bidentatum (Double-Tooth Pepper-Grass) · L. aucheri (Kunana Pepperwort) · L. bidentatum Morton var. remyi (Drake) Fosberg (Remy's Pepperweed) · L. bidentatum var. owaihiense (Kunana Pepperwort) · L. bidentatum var. remyi (Remy's Pepperweed) · L. bonariense (Argentine Pepperweed) · L. campestre (Cream-Anther Field Pepperwort) · L. crenatum (Alkalai Pepperweed) · L. davisii (Davis Pepperweed) · L. densiflorum (Common Pepperweed) · L. densiflorum var. densiflorum (Miner's Pepperwort) · L. densiflorum var. elongatum (Common Pepperweed) · L. densiflorum var. elongatum (Rydb.) Thell. (Tall Pepperweed) · L. densiflorum var. macrocarpum (Bigseed Pepperweed) · L. densiflorum var. macrocarpum Mulligan (Bigseed Pepperweed) · L. densiflorum var. pubecarpum (Babyseed Pepperweed) · L. densiflorum var. pubecarpum (A.Nelson) Thell. (Babyseed Pepperweed) · L. densiflorum var. ramosum (Miner's Pepperweed) · L. densiflorum var. ramosum (A.Nelson) Thell. (Miner Pepperweed) · L. dictyotum (Alkali Pepperweed) · L. dictyotum Gray var. acutidens Gray (Alkali Pepperwort) · L. dictyotum Gray var. dictyotum Gray (Alkali Pepperweed) · L. dictyotum var. acutidens (Alkali Pepperwort) · L. dictyotum var. dictyotum (Alkali Pepperweed) · L. draba draba (Globed-Podded Hoarycress Or Whitetop) · L. flavum (Yellow Pepper-Grass) · L. flavum Torr. var. felipense C.L.Hitchc. (Yellow Pepperweed) · L. flavum Torr. var. flavum Torr. (Yellow Pepperweed) · L. flavum var. felipense (Yellow Pepperweed) · L. flavum var. flavum (Yellow Pepperweed) · L. fremontii (Desert Pepperweed) · L. fremontii var. fremontii (Desert Pepperweed) · L. fremontii var. stipitatum (Desert Pepperweed) · L. fremontii var. stipitatum Rollins (Desert Pepperweed) · L. graminifolium (Grass-Leaf Pepper-Grass) · L. heterophyllum (Purple Anther Field Pepperweed) · L. hirtum (Mediterranean Pepperweed) · L. huberi (Huber's Pepperweed) · L. hyssopifolium (Hyssopleaf Pepperweed) · L. integrifolium (Thick-Leaf Pepperwort) · L. integrifolium var. heterophyllum (Thickleaf Pepperweed) · L. integrifolium var. heterophyllum S.Watson (Thickleaf Pepperweed) · L. integrifolium var. integrifolium (Thickleaf Pepperweed) · L. integrifolium var. integrifolium Nutt. (Thickleaf Pepperweed) · L. jaredii (Jared Peppergrass) · L. jaredii album (Jared Peppergrass) · L. jaredii jaredii (Jared Peppergrass) · L. jaredii subsp. album (Panoche Pepperweed) · L. lasiocarpum (Hairy-Pod Pepper-Grass) · L. lasiocarpum lasiocarpum (Hairy-Pod Pepperwort) · L. lasiocarpum var. lasiocarpum (Shaggyfruit Pepperweed) · L. lasiocarpum var. wrightii (Wrights Pepperweed) · L. lasiocarpum wrightii (Wright Pepperweed) · L. latifolium (Broad-Leaf Pepper-Grass) · L. latipes (Dwarf Peppergrass) · L. latipes Hook. var. heckardii Rollins (Heckard's Pepperweed) · L. latipes var. heckardii (Heckard's Pepperweed) · L. latipes var. latipes (San Diego Pepperweed) · L. meyenii (Maca) · L. montanum (Montana Pepperweed) · L. montanum subsp. canescens (Gray Pepperweed) · L. montanum canescens var. canescens (Mountain Pepper-Plant) · L. montanum subsp. cinereum (Mountain Pepperweed) · L. montanum var. alpinum (Alpine Pepperweed) · L. montanum var. canescens (Mountain Pepperweed) · L. montanum var. cinereum (Mountain Pepperweed) · L. montanum var. claronense (Mountain Pepperweed) · L. montanum var. claronense Welsh (Mountain Pepperweed) · L. montanum var. coloradense (Mountain Pepperweed) · L. montanum var. glabrum (Mountain Pepperweed) · L. montanum var. glabrum C.L.Hitchc. (Mountain Pepperweed) · L. montanum var. jonesii (Jones' Pepperweed) · L. montanum var. jonesii (Rydb.) C.L.Hitchc. (Jones Pepperweed) · L. montanum var. montanum (Mountain Pepperweed) · L. montanum var. montanum Nutt. (Mountain Pepperweed) · L. montanum var. neeseae (Elizabeth's Pepperweed) · L. montanum var. neeseae Welsh & Reveal (Elizabeth's Pepperweed) · L. montanum var. nevadense (Mountain Pepperweed) · L. montanum var. nevadense Rollins (Mountain Pepperweed) · L. montanum var. tenellum (Mountain Pepperweed) · L. montanum var. tenellum (L.O.Williams) C.L.Hitchc. (Mountain Pepperweed) · L. montanum var. wyomingense (Mountain Pepperweed) · L. montanum var. wyomingense (C.L.Hitchc.) C.L.Hitchc. (Mountain Pepperweed) · L. nanum (Dwarf Pepperweed) · L. nitidum (Common Peppergrass)

More Info

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Further Reading

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Notes

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Contributors

Data Sources

Accessed through GBIF Data Portal November 18, 2007:

Identifiers

Footnotes

  1. "Lepidium". in Flora of China Vol. 8 Page 28. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
  2. "Lepidium latifolium". in Flora of China Vol. 8 Page 30. Missouri Botanical Garden Press. Online at EFloras.org. [back]
  3. Mean = 229.730 meters (753.707 feet), Standard Deviation = 481.650 based on 2,063 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
Last Revised: 7/15/2012