Eriogonum twisselmannii (J.T.Howell) Reveal In Munz

Twisselmann's buckwheat (en)

Species

Angiosperms > Caryophyllales > Polygonaceae > Eriogonum

Characteristics

Herbs, matted, occasionally polygamodioecious, (0.2-)0.5-1.5 × 3-4 dm, tomentose. Stems: caudex spreading; 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, (0.2-)0.5-1.2 dm, tomentose, with a whorl of 4-8 leaflike bracts ca. midlength, similar to leaf blades, 0.4-0.8 × 0.1-0.3 cm. Leaves in loose to congested basal rosettes; petiole 0.2-0.4 cm, thinly tomentose; blade oblanceolate to elliptic, 0.5-1 × (0.2-)0.4-0.6 cm, white-or grayish-tomentose abaxially, thinly tomentose to nearly glabrous and dull green adaxially. Inflorescences capitate, 0.7-1.5 cm wide; branches absent; bracts absent immediately below involucre. Involucres 1 per node, campanulate, (2.5-)4-5 × 4-6 mm; teeth 6-9, lobelike, strongly reflexed, (2-)3-5 mm. Flowers (4-)5-6 mm, including 1-1.3 mm stipelike base; perianth pale yellow, villous abaxially; tepals slightly dimorphic, those of outer whorl obtuse, 3-5 × 3-3.5 mm, those of inner whorl broadly oblanceolate, 5-6 × 2.5-3 mm; stamens exserted, 4-5 mm; filaments pilose proximally. Achenes light brown, 5-5.5 mm, glabrous except for sparsely pubescent beak.
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality polygamodioecy
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.05 - 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) -

Usage

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

Cultivation

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

Distribution

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

Identifiers

LSID urn:lsid:ipni.org:names:95518-2
WFO ID wfo-0000675569
COL ID -
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Eriogonum twisselmannii Eriogonum douglasii var. twisselmannii