Eriogonum annuum Nutt.

Annual buckwheat (en)

Species

Angiosperms > Caryophyllales > Polygonaceae > Eriogonum

Characteristics

Herbs, 5-20 × 5-10 dm, grayish. Aerial flowering stems slender, 4-10(-15) dm, floccose to densely tomentose. Leaves: petiole (rosette) 0.3-1.2 cm, or petiole (cauline) 0.2-0.5 cm, tomentose to floccose; blade oblanceolate to oblong, 1-7 × 0.3-1.5 cm, densely tomentose abaxially, floccose adaxially not thickened and auriculate-subclasping proximally; margins entire or slightly revolute. Inflorescences 3-10 × 2-7 cm; bracts triangular, 1-4 mm. Peduncles 0.1-0.5 cm, tomentose to floccose. Involucres turbinate to campanulate, 2.5-4 × 2-3 mm, tomentose to floccose abaxially, glabrous adaxially; teeth 5-6, 0.4-1 mm. Flowers 1-2.5 mm; perianth white or cream to rose; tepals: those of outer whorl obovate, 1-2 × 0.9-1.5 mm, those of inner whorl narrowly ovate to oblong, 1.5-4 × 1.2-1.8 mm; stamens usually included, 1-2 mm. Achenes 1.5-2 mm. 2n = 40.
Life form annual
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.5 - 2.0
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) 4-9

Usage

Uses dye medicinal
Edible -
Therapeutic use Diuretic (unspecified), Oral Aid (unspecified), Pediatric Aid (unspecified), Ceremonial Medicine (unspecified), Dermatological Aid (unspecified), Disinfectant (unspecified), Other (unspecified), Panacea (unspecified), Witchcraft Medicine (unspecified)
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 annuum world distribution map, present in Mexico and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:329760-2
WFO ID wfo-0000674458
COL ID 3B4JG
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Eriogonum annuum Eriogonum cymosum Eriogonum lindheimerianum Eriogonum hitchcockii Eriogonum annuum subsp. chihuahuaense Eriogonum annuum var. cymosum Eriogonum annuum subsp. hitchcockii Eriogonum annuum subsp. cymosum