Panicum amarum |
Panicum capillare |
|
---|---|---|
witchgrass |
||
Habit | Annual, branching from the base, the culms erect to decumbent, 2-7 dm. tall, copiously covered with soft hairs 2-4 mm. long. | |
Leaves | Sheaths open; articulation below the glumes; ligules composed of straight hairs 1.5-2 mm. long; blades 5-12 mm. broad. |
|
Flowers | Inflorescence a diffusely-branched panicle 1-3 dm. long. often partially included in the uppermost sheath; spikelets 2-flowered, 2.5-3 mm. long; first glume 3-nerved, half as long and the spikelet; second glume 7-nerved, about as long as the lower lemma, which is sterile and 9-nerved, both well exceeding and enclosing the fertile lemma and palea. |
|
Panicum amarum |
Panicum capillare |
|
Flowering time | June-September | |
Habitat | Moist and irrigated areas, along streams and around ponds. | |
Distribution | Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
|
|
Origin | Native | |
Conservation status | Not of concern | |
Sibling taxa | ||
Subordinate taxa | ||
Web links |
|