Aconogonon davisiae |
Polygonaceae |
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Newberry's fleeceflower, Davis' knotweed, Davis's knotweed |
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Habit | Herbaceous perennial from a thick root, usually with several simple or freely branched stems, ascending to erect, about 1.5-3.5 dm. tall, more or less reddish-brown throughout. | |
Leaves | Leaves numerous, alternate, only slightly reduced upward, short-petiolate, the blade broadly lanceolate to oblong, 2-5 cm. long; sheathing stipules brownish, 5-15 mm. long, not lacerate. |
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Flowers | Inflorescence of short, few-flowered racemes in upper leaf axils; perianth greenish-white to pinkish, 3-4 mm. long with a stipe-like base, the 5 segments obovate; stamens 8, on short filaments. |
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Fruits | Achene with three sharp angles, yellowish-brown, smooth and shining, about 4 mm. long. |
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Aconogonon davisiae |
Polygonaceae |
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Flowering time | June-September | |
Habitat | Slopes and ridges in the subalpine and alpine. | |
Distribution | Occurring on both sides of the Cascades crest in Washington; Washington to California.
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Origin | Native | Native |
Conservation status | Not of concern | Not of concern |
Sibling taxa | ||
Web links |
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