Eriogonum douglasii Benth.

Douglas' buckwheat (en)

Species

Angiosperms > Caryophyllales > Polygonaceae > Eriogonum

Characteristics

Herbs, matted, occasionally polygamodioecious, 0.4-1.5 × 0.5-6 dm, thinly tomentose to glabrate. Stems: caudex spread-ing; aerial flowering stems erect or nearly so, slender, solid, not fistulose, arising at nodes of caudex branches and at distal nodes of short, nonflowering aerial branches, 0.4-1.2 dm, with a whorl of 4-8 leaflike bracts ca. midlength, similar to leaf blades, 0.3-1.5 × 0.1-0.3 cm. Leaves in basal rosettes; petiole 0.05-0.5(-1) cm, tomentose; blade oblanceolate or elliptic to spatulate, 0.4-1.5(-1.9) × 0.1-0.5 cm, lanate on both surfaces, or tomentose abaxially and slightly less so and greenish adaxially, margins entire, plane. Inflorescences capitate, 0.8-1.5 cm wide; branches absent; bracts absent immediately below involucre. Involucres 1 per node, turbinate to turbinate-campanulate, 2.5-3.5 × 2-2.5 mm; teeth 6-14, lobelike, strongly reflexed, 1.5-4(-6) mm. Flowers 4-9 mm, including 0.7-2 mm stipelike base; perianth yellow, cream, or ochroleucous to rose-red, sparsely to densely villous abaxially; tepals monomorphic, obovate; stamens exserted, 4-6 mm; filaments pilose proximally. Achenes light brown, 3-4.5 mm, glabrous except for pubescent beak.
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality polygamodioecy
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.04 - 0.15
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 7-9
Soil humidity 1-3
Soil texture 5-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 5-9

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -18
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Eriogonum douglasii unspecified picture

Distribution

Eriogonum douglasii world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:94886-2
WFO ID wfo-0000674722
COL ID 3B4MV
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Eriogonum douglasii Eriogonum ovalifolium Eriogonum caespitosum var. douglasii Eriogonum caespitosum subsp. douglasii Eriogonum douglasii var. douglasii