Description
provided by eFloras
Herbs. Stems erect, green, divar-icately branched, not wiry, 5-50 cm, usually papillose-scabrid-ulous, rarely glabrescent. Leaves uniformly distributed, articulated to ocreae, basal leaves usually caducous, distal leaves abruptly reduced to bracts, articulated to ocreae; ocrea 8-12 mm, papillose-scabridulous, proximal part cylindric, distal part disintegrating into a few persistent fibers; petiole 0.1-2 mm; blade 1-veined, not pleated, linear to lanceolate, 35-60 × 1-3 mm, margins flat or narrowly revolute, smooth or papillose-denticulate, apex acute, mucronate. Inflorescences axillary and terminal, spikelike, dense; cymes crowded, ± overlapping at branch tips, 2-5-flowered. Pedicels enclosed in or slightly exserted from ocreae, erect to spreading, 0.5-2 mm. Flowers open or semi-open; perianth 3-5 mm; tube 9-17% of perianth length; tepals overlapping, uniformly pink or white, petaloid, oblong-obovate, cucullate, navicular in distal 1/ 4, apex rounded; midveins branched; stamens 8. Achenes enclosed in perianth, black, narrowly elliptic or elliptic-lanceolate to narrowly ovate, 3-5 mm, faces subequal, shiny, smooth to striate-tubercled.
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- cc-by-nc-sa-3.0
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Distribution
provided by eFloras
B.C.; Calif., Idaho, Mont., Oreg., Wash., Wyo.
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- cc-by-nc-sa-3.0
- copyright
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Habitat
provided by eFloras
Moist to dry, open rocky places, including serpentine; 10-2000m.
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- cc-by-nc-sa-3.0
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
provided by eFloras
Polygonum douglasii Greene subsp. spergulariiforme (Meisner ex Small) J. C. Hickman; P. emaciatum A. Nelson
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- cc-by-nc-sa-3.0
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Polygonum spergulariiforme: Brief Summary
(
Vietnamese
)
provided by wikipedia VI
Polygonum spergulariiforme là một loài thực vật có hoa trong họ Rau răm. Loài này được Meisn. ex Small miêu tả khoa học đầu tiên năm 1892.
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- cc-by-sa-3.0
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- Wikipedia tác giả và biên tập viên