Pleuropogon hooverianus |
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Hoover's semaphoregrass, north coast semaphore grass |
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Habit | Plants perennial; not cespitose, rhizomatous. |
Culms | 1-1.6 m, erect. |
Sheaths | glabrous, retrorsely scabridulous; ligules 3-6.5 mm; blades 3-30 cm long, 4-10 mm wide, apices acute to acuminate, mucronate, flag leaves often with reduced spinose blades. |
Racemes | 21-33 cm, with 7-10 spikelets; internodes 1.8-8 cm; pedicels 1.5-5 mm, erect or ascending, rarely reflexed. |
Spikelets | 28-42 mm, erect or ascending, with 9-16 florets, usually all but the terminal floret bisexual. |
Caryopses | 3.5-4 mm. |
Lower | glumes 3-5.6 mm; upper glumes 4.5-7.2 mm, 1-3-veined; rachilla internodes 2-3 mm long, about 0.4 mm thick, basal 1/2 developing into a glandular swelling; lemmas 8-9 mm, 7-veined, lateral veins strongly ribbed, apices toothed, usually rounded, rarely acute or erose, awned, awns 0.2-4 mm; paleal keels unawned, each with a 0.6-1.5 mm triangular appendage; anthers 4-4.8 mm. |
2n | =16, 36. |
Pleuropogon hooverianus |
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Distribution |
CA
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Discussion | Pleuropogon hooverianus grows in wet and marshy areas, usually in shady locations. Several of the populations are around redwood groves. It is known only from Mendocino, Sonoma, and Marin counties in California. It is listed as rare by the state of California. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 24. |
Parent taxa | Poaceae > subfam. Pooideae > tribe Meliceae > Pleuropogon |
Sibling taxa | |
Name authority | (L.D. Benson) J.T. Howell |
Web links |