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Holcus annuus

Interesting Facts

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Description

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Genus Holcus

Annuals or perennials . Leaf blades flat. Inflorescence a moderately to densely contracted panicle. Spikelets laterally compressed , disarticulating below glumes , florets 2, lower floret bisexual , upper floret staminate; rachilla usually curved and hooked below bisexual floret, often shortly extended above staminate floret; glumes subequal , papery , enclosing florets, strongly keeled , lower glume 1-veined, upper glume 3-veined; lemmas cartilaginous , shiny, rounded on back, veins indistinct, apex obtuse or 2-toothed, upper lemma or both awned ; awn arising from upper 1/3 of lemma back, geniculate , hooked or straight; palea slightly shorter than lemma, membranous.

Eight species: N Africa, SW Asia, Europe; one species (introduced ) in China.[1]

Taxonomy

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Similar Species

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Members of the genus Holcus

ZipcodeZoo has pages for 3 species, subspecies, varieties, forms, and cultivars in this genus:

H. lanatus (Common Velvet Grass) · H. mollis (Creeping Velvet Grass) · H. mollis 'Albovariegatus' (Creeping Velvet Grass)

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 March 16, 2008:

Identifiers

Footnotes

  1. Zhen-lan Wu & Sylvia M. Phillips "Holcus". in Flora of China Vol. 22 Page 316, 334. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
Last Revised: 2012-07-24