familyPolygonaceae
subfamilyPolygonaceae subfam. Eriogonoideae
genusEriogonum
subgenusEriogonum subg. Oligogonum
speciesEriogonum compositum
Eriogonum compositum var. compositum
Common names: Arrow-leaf wild buckwheat
Endemic
Synonyms: Eriogonum compositum var. citrinum H. St. John & F. A. Warren Eriogonum compositum var. pilicaule
Plants 4–7 dm. Aerial flowering-stems stout, often fistulose, 2–5 dm, usually glabrous, rarely floccose. Leaf-blades ovate to deltoid, (2–) 7–25 × 2–8 cm. Involucres sparsely to densely lanate. Flowers 5–6 mm; perianth pale to bright-yellow. 2n = 40.
Phenology: Flowering Apr–Jul.
Habitat: Sandy to gravelly flats and slopes, mixed grassland and sagebrush communities, oak and montane conifer woodlands
Elevation: 30-2500 m
Distribution
Calif., Idaho, Oreg., Wash.
Discussion
Variety compositum is widespread and common from central-northern Washington and west-central Idaho south through Oregon to northern California.
Selected References
None.
Lower Taxa
None.
"dm" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property.
... more about "Eriogonum compositum var. compositum"
not winged +
light-brown +
glabrous +
homocarpic +
3-gonous +
5mm;6mm +
various +
dehiscing +
absent +
marcescent +
longer +
anthesis +
whorled +
distal +
stipelike +
pubescent +
entire +
greenish +
ovate;deltoid +
not awn-tipped +
connate +
absent +
3;several +
connate +
not brittle +
free +
aerial +
absent +
scabrellous +
round +
spreading +
absent +
woody +
woody +
fasciculate +
Arrow-leaf wild buckwheat +
nuclear +
abundant +
adnate +
pilose +
6;100 +
attenuate +
hollow +
aerial +
fistulose +
stout;slender +
homocarpic +
Sandy to gravelly flats and slopes, mixed grassland and sagebrush communities, oak and montane conifer woodlands +
bractlike +
racemose +
not appressed +
spreading +
axillary +
reduced +
trichotomous +
enclosed +
lanate +
nonmembranous +
persistent +
2cm;8cm +
sheathing +
persistent +
basal +
bractlike +
awn-tipped +
plane +
2;3 +
not swollen +
orthotropous +
basal +
articulate +
absent +
accrescent +
cluster +
reflexed +
absent +
erect to deflexed +
winged +
pale;bright-yellow +
persistent +
glabrous +
pustulose +
accrescent +
various +
absent +
obscure +
tomentose +
Edwards’s Bot. Reg. +
1835 +
fibrous +
persistent +
anthesis +
ringlike +
longitudinal +
Endemic +
recurved +
exserted +
absent +
scapose +
scandent +
absent +
peltate +
capitate +
foliaceous +
absent +
chartaceous +
arranged +
involucral +
absent +
distinct +
erect;spreading or recurved +
spreading;erect +
woody +
Eriogonum compositum var. compositum +
Eriogonum compositum +
variety +
absent +
monomorphic +
connate +
dimorphic +
coriaceous +
single +
longer +
lobelike +
not awned +
persistent +
membranous +
glandular-punctate +
developing +
raised +
perennial +
homophyllous +
polygamodioecious +
2dm;5dm +