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Paspalum dilatatum

(Dallas 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:

Mao Hua Que Bai

Common Names in Danish:

Hirse

Common Names in English:

Dallas Grass, Dallasgrass, Dallis Grass, Dallisgrass, Herbe De Miel, Herbe Sirop, Hiku Nua, Large Water Grass, Palpalum Dilate, Paspalum, Water Grass

Common Names in French:

Herbe De Dallis, Millet Bâtard, Paspale Dilaté (Belgium)

Common Names in German:

Dallisgras

Common Names in Italian:

Paspalo Dilatato

Common Names in Japanese:

Shima Suzume No Hie

Common Names in Spanish:

Grama De Agua, Hierba Dallis, Hierba De Australia, Pasto Dalis, Pasto Dallis, Pasto Miel, Pasto Miel (Argentina), Zacate Dallis (Mexico)

Description

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Genus Paspalum

Perennials or annuals . Culms tufted , or with creeping rhizomes and stolons. Leaf blades linear or narrowly lanceolate, flat; ligule membranous. Inflorescence composed of single, digitate or scattered racemes ; rachis flat, often winged ; spikelets single or paired , pedicellate in 2-4 rows , densely crowded, lower lemma abaxial . Spikelets orbicular , ovate or elliptic plano-convex ; lower glume absent or rarely present as a small scale; upper glume as long as spikelet or nearly so, rarely absent, convex , membranous to subpapery, 3-7-veined; lower lemma resembling upper glume, flat, neuter without palea; upper lemma usually coriaceous to crustaceous , rarely softer, margins inrolled , apex obtuse to apiculate . x = 10.

About 330 species:tropical and warm-temperate regions, especially in the New World; 16 species (two endemic, eight introduced ) in China.

This genus includes a number of good forage grasses and also some widespread weeds .[1]

Physical Description

Species Paspalum dilatatum

Perennial from a short rhizome. Culms forming a coarse , spreading tuft, 50-150 cm tall, ca. 5 mm in diam., glabrous . Leaf sheaths glabrous or pilose in the lower part; leaf blades linear , 10-45 × 0.3-1.2 cm, glabrous, apex attenuate; ligule 2-4 mm. Inflorescence axis 2-20 cm; racemes 2-10, 5-12 cm, spaced, diverging, axils pilose; spikelets paired ; rachis 1-1.5 mm wide, glabrous. Spikelets green or purplish, broadly ovate , 3-4 mm, sharply acute; upper glume membranous, 5-9-veined, sparsely pubescent to almost glabrous on back, margins fringed with long white hairs ; lower lemma similar but not hairy ; upper lemma pallid at maturity, orbicular , ca. 2 mm, clearly shorter than spikelet, papillose-striate, apex rounded . Fl. and fr. May-Jul. 2n = 40, 50-63. [source]

Habit: GraminoidGrowth Form: BunchShape and Orientation: Decumbent

Flowers: Bloom Period: Mid SpringFlower Color: Yellow • Flower Conspicuous: No

Seeds: Seed per Pound: 281200 • Seed Spread Rate: Moderate • Seedling Vigor: Medium • Fruit/Seed Abundance: Low • Fruit/Seed Color: Brown • Fruit/Seed Conspicuous: No • Cold Stratification Required: No

Foliage: Foliage Color: Green • Foliage Porosity Summer: Moderate • Foliage Porosity Winter: Porous • Foliage Texture: Medium • Fall Conspicuous: No • Leaf Retention: No

Size/Age/Growth

Active Growth Period: SpringGrowth Rate: Moderate • After Harvest Regrowth Rate: Moderate • Mature Height (feet): 3.0 • Size: 12-18" tall. • Vegetative Spread Rate: Slow • Lifespan: Lifespan

Habitat

Roadsides, waste places, naturalized [2].

Typically found at an altitude of 0 to 2,029 meters (0 to 6,657 feet).[3]

Biology

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Reproduction

Duration: PerennialCoppice Potential: No • Progagated by Bulbs: No • Propagated by Bare Root: No • Propagated by Container: No • Propagated by Corms: No • Propagated by Cuttings: No • Propagated by Seed: Yes • Propagated by Sod: No • Propagated by Sprigs: No • Propagated by Tubers: No • Fruit/Seed Period Begin: SpringFruit/Seed Period End: Summer • Fruit/Seed Persistence: No

Growth

Culture: Space 9-12" apart.

Soil: Adapted to Medium Textured: Adapted to Medium Textured Soils • Adapted to Coarse Textured Soils: No • Anaerobic Tolerance: High • Salinity Tolerance: Medium • CaCO3 Tolerance: Low • Minimum pH: 4.9 • Maximum pH: 7.5 • Fertility Requirement: High

Sunlight: Sun Exposure: Full Sun . • Shade Tolerance: Intermediate

Moisture: Drought Tolerance: Low • Minimum Precipitation: 35 • Maximum Precipitation: 60 • Moisture Use: High

Temperature: Minimum Temperature (F): -3 • Minimum Frost Free Days: 165 • Cold Hardiness: 7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b, 11. (map)

Taxonomy

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Synonyms

Digitaria dilatata (Poiret) H. J. Coste.

Notes

Name Status: Accepted Name .

Last scrutiny: 15-Mar-2000

Similar Species

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Members of the genus Paspalum

ZipcodeZoo has pages for 78 species, subspecies, varieties, forms, and cultivars in this genus:

P. acuminatum (Book Paspalum) · P. almum (Comb's Crowngrass) · P. arundinaceum (Thick Ditch Crowngrass) · P. bakeri (Baker's Crowngrass) · P. bifidum (Pitchfork Crowngrass) · P. blodgettii (Blodgett's Crowngrass) · P. boscianum (Bull Crowngrass) · P. caespitosum (Blue Crowngrass) · P. clavuliferum (Hillside Crowngrass) · P. compressum (Savannah Grass) · P. conjugatum (Herbe Creole) · P. conspersum (Scattered Paspalum) · P. convexum (Latin American Crowngrass) · P. coryphaeum (Emperor Crowngrass) · P. decumbens (Decumbent Crowngrass) · P. densum (Dense Crowngrass) · P. denticulatum (Longtom) · P. dilatatum (Dallas Grass) · P. dilatatum dilatatum (Palpalum Dilate) · P. dispar (Mosquito Crowngrass) · P. dissectum (Mudbank Crowngrass) · P. distichum (Joint Paspalum) · P. fasciculatum (Mexican Crowngrass) · P. fimbriatum (Colombia Grass) · P. floridanum (Florida Paspalum) · P. fluitans (Horse-Tail Paspalum) · P. hartwegianum (Hartweg's Paspalum) · P. hieronymi (Paspalum) · P. hydrophilum (Water Paspalum) · P. intermedium (Intermediate Paspalum) · P. laeve (Field Paspalum) · P. laeve var. laeve (Field Paspalum) · P. langei (Rusty-Seed Paspalum) · P. laxum (Coconut Paspalum) · P. lividum (Longtom) · P. longifolium (Long-Leaved Paspalum) · P. macrophyllum (Bigleaf Paspalum) · P. malacophyllum (Ribbed Paspalum) · P. maritimum (Coastalsand Paspalum) · P. millegrana (Paja Brava) · P. minus (Mat Paspalum) · P. modestum (Water Paspalum) · P. molle (Soft Paspalum) · P. monostachyum (Gulfdune Paspalum) · P. nicorae (Brunswickgrass) · P. notatum (Bahia Grass) · P. notatum var. latiflorum (Bahiagrass) · P. notatum var. notatum (Bahiagrass) · P. notatum var. saurae (Bahiagrass) · P. notatum 'Argentine' (Bahia Grass) · P. notatum 'Pensacola' (Bahia Grass) · P. notatum 'Tifton 9' (Bahia Grass) · P. orbiculatum (Circular Paspalum) · P. paniculatum (Arrocillo) · P. parviflorum (Smallseed Paspalum) · P. pauciciliatum (Prostrate Dallis Grass) · P. paucispicatum (Large Knotgrass) · P. pleostachyum (Tropical Paspalum) · P. plicatulum (Brown-Seed Paspalum) · P. praecox (Early Paspalum) · P. pubiflorum (Hairy-Seed Paspalum) · P. pubiflorum var. pubiflorum (Hairyseed Paspalum) · P. pulchellum (Grand Paspalum) · P. quadrifarium (Tussock Paspalum) · P. racemosum (Peruvian Paspalum) · P. rupestre (Rock Paspalum) · P. scrobiculatum (India Paspalum) · P. scrobiculatum var. orbiculare (Ditch Millet) · P. secans (Slender Ditch Paspalum) · P. setaceum (Fringeleaf Paspalum) · P. thunbergii (Japanese Paspalum) · P. unispicatum (One-Spike Paspalum) · P. urvillei (Vasey Grass) · P. vaginatum (Seashore Paspalum) · P. vaginatum 'Te-13' (Seashore Paspalum) · P. virgatum (Talquezal) · P. virletii (Virlet Paspalum) · P. wrightii (Wrights Paspalum)

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 14, 2007:

Identifiers

Footnotes

  1. Shou-liang Chen & Sylvia M. Phillips "Paspalum". in Flora of China Vol. 22 Page 1, 500, 526. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
  2. "Paspalum dilatatum". in Flora of China Vol. 22 Page 526, 527. Missouri Botanical Garden Press. Online at EFloras.org. [back]
  3. Mean = 238.080 meters (781.102 feet), Standard Deviation = 346.840 based on 832 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
Last Revised: 7/15/2012