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Blepharipappus scaber laevis

(Blepharipappus)

Overview

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Interesting Facts

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Common Names

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Common Names in English:

Blepharipappus, Rough Eyelash-Weed, Rough Eyelashweed

Description

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Genus Blepharipappus

Annuals , 5-20(-40+) cm. Stems ± erect (scabrous and, sometimes, hirsute , usually stipitate-glandular distally). Leaves mostly cauline; proximal opposite, most alternate; sessile; blades narrowly spatulate to linear , margins entire, faces scabrous, hirsute, strigose , sericeous , or villous (distal leaves usually stipitate-glandular as well). Heads radiate , borne singly or in open, corymbiform arrays. Peduncular bracts: pit-glands, tack-glands, and/or spines 0 at tips . Involucres turbinate to campanulate or hemispheric , 3-6+ mm diam. Phyllaries (2-) 3-5(-8) in 1 series, ± lanceolate or oblanceolate , herbaceous, each ± 1/2 investing subtended floret proximally, abaxially ± hirsute and/or stipitate-glandular. Receptacles convex , glabrous , paleate (paleae falling, subtending all or most disc florets , outer herbaceous, inner scarious ). Ray florets (2-) 3-5(-8), pistillate , fertile ; corollas whitish (nerved with purple abaxially). Disc florets 6-25(-60+), bisexual , fertile; corollas whitish, tubes shorter than or about equaling funnelform throats , lobes 5, deltate (anthers ± dark purple; styles ± hairy proximal to branches, branches ca. 0.2 mm). Cypselae ± obconic or terete (basal attachments ± central, faces ± villous, apices not beaked ) ; pappi 0 or of 12-18(-26) subulate fimbriate to ciliate or plumose scales . x = 8.

Species 1: nw North America.

Blepharipappus and members of Layia were once treated as congeneric ; Layia appears to be more closely related to Lagophylla than to Blepharipappus, based on molecular phylogenetic data (S. Carlquist et al. 2003).[1]

Physical Description

Species Blepharipappus scaber laevis

Leaf blades 6-25+ × 0.5-1.5 mm. Phyllaries 3-8 mm. Ray laminae 2-11 mm. Disc corollas 2-3.5 mm. Cypselae 2-3.5 mm; pappi 0.1-2 mm. 2n = 16. [source]

Blepharipappus scaber is unusual among self-incompatible, continental tarweeds for occurring widely in western North America and having a relatively limited distribution in the California Floristic Province . [source]

Habit: Forb/herb

Flowers: Flower Color: lavender, near white, violet, white

Size/Age/Growth

Size: 6-12" tall.

Habitat

Openings in sagebrush scrub , pinyon-juniper woodlands, yellow-pine forests ; 300-2200 m [2].

Biology

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Reproduction

Duration: Annual

Growth

Sunlight: Sun Exposure: Full Sun .

Moisture: Drought Tolerance: High

Temperature: Cold Hardiness: 5b, 6a, 6b, 7a, 7b. (map)

Taxonomy

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Notes

Name Status: Accepted Name . Latest taxonomic scrutiny: 15-Mar-2000

Similar Species

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Members of the genus Blepharipappus

ZipcodeZoo has pages for 2 species, subspecies, varieties, forms, and cultivars in this genus:

B. scaber laevis (Blepharipappus) · B. scaber subsp. laevis (Rough Eyelashweed)

More Info

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Further Reading

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Notes

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Contributors

Identifiers

Footnotes

  1. Bruce G. Baldwin, John L. Strother "Blepharipappus". in Flora of North America Vol. 21 Page 255, 259, 289. Oxford University Press. Online at EFloras.org. [back]
  2. "Blepharipappus scaber". in Flora of North America Vol. 21 Page 258, 259. Oxford University Press. Online at EFloras.org. [back]
Last Revised: 2012-07-27