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Dichanthelium acuminatum (Sw.) Gould & Clark, also called tapered rosette grass, Western panicum, Western witchgrass, or Western panicgrass, is a perennial native plant of the Puget Prairie ecosystem in the Poaceae family. Other names: Panicum occidentale

Taxonomy

• Kingdom Plantae – Plants
  
• Subkingdom Tracheobionta – Vascular plants
  
• Superdivision Spermatophyta – Seed plants
  
• Division Magnoliophyta – Flowering plants
  
• Class Liliopsida – Monocotyledons
  
• Subclass Commelinidae
  
• Order Cyperales
  
• Family Poaceae – Grass family
  
• Genus Dichanthelium (Hitchc. & Chase) Gould – yarrow
  
• Species Dichanthelium acuminatum (Sw.) Gould & C.A. Clark – tapered rosette grass

Description

Dichanthelium acuminatum is a species of grass from the genus Dichanthelium, in North America.

Tufted perennial; stems yellowish-green, leafy towards base, spreading, usually velvety-hairy, 15-40 cm tall. Leaves flat, firm, erect to ascending, hairy, 5-10 mm wide, no auricles; ligules 3-4 mm long, consisting of long hairs. Inflorescence a panicle, open, 3-9 cm long; spikelets up to 2 mm long, short-hairy, two flowered, the lower flower sterile; glumes unequal in size; fertile lemmas hardened (Pojar and MacKinnon, 1994)

Robert H. Mohlenbrock @ USDA-NRCS PLANTS Database / USDA SCS. 1989. Midwest wetland flora: Field office illustrated guide to plant species. Midwest National Technical Center, Lincoln.

Propagation

Seed

Dichanthelium acuminatum

Abbreviation: DIAC

Seed sample from: 2011

Average Measurement: 1.6 x 1 x 0.8 Measurement Range: L: 1.5 x 1.9, W: no variation in sample set (all seeds measured 1 mm) D: 0.7 - 0.9

References

• Stewart, Hilary. (1984). Cedar: tree of life to the Northwest Coast Indians. Vancouver: Douglas & McIntyre. ISBN 0-88894-437-3.
• Van Pelt, R. (2001). Forest Giants of the Pacific Coast. University of Washington Press. ISBN 0-295-98140-7.

Dichanthelium acuminatum

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