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Aconogonon davisiae
(W.H. Brewer ex A. Gray) Soják
(redirected from:
Polygonum newberryi
Small)
Family:
Polygonaceae
Davis' Fleeceflower
[
Polygonum newberryi
Small,
more
Polygonum newberryi var. glabrum
G.N. Jones,
Polygonum newberryi var. newberryi
]
Paul Rothrock
FNA
Resources
Harold R. Hinds+, Craig C. Freeman in Flora of North America (vol. 5)
Plants
12-42(-50) cm.
Stems
ascending to erect, glabrous or pubescent.
Leaves:
ocrea reddish brown, funnelform, 0.3-3 cm, margins oblique, glabrous or finely pubescent to pilose; petiole 0.3-10(-15) mm; blade oblong-ovate to ovate, rarely broadly lanceolate, 2.1-7.5(-9.5) × 1.1-5 cm, subcoriaceous, base truncate or, rarely, cordate, margins entire, glabrous or ciliate, apex obtuse to acute, faces often glaucous, glabrous or pubescent.
Inflorescences
axillary, racemelike; peduncle essentially absent.
Pedicels
0.5-1.9(-2.4) mm.
Flowers
1-4 per ocreate fascicle, rarely some flowers with stamens poorly developed; perianth greenish to pinkish white, 2-4.5 mm; tepals slightly dimorphic or, rarely, distinctly so, oblong-ovate to obovate, apex obtuse; anthers yellow or pink.
Achenes
exserted, yellowish brown, not beaked distally, 3.2-6(-8.3) × 2.1-5 mm, shiny, faces not concave.
2
n
= 20.
The varieties are largely sympatric and often intergrade. The treatment here follows Hong S. P. (1991).
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Paul Rothrock
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