Helenium amarum var. badium
Rhodora 62: 321. 1960.
Common names: Basin sneezeweed
Basionym: Helenium tenuifolium var. badium A. Gray ex S. Watson Proc. Amer. Acad. Arts 18: 108. 1883
Synonyms: Helenium badium (A. Gray ex S. Watson) Greene
Treatment appears in FNA Volume 21. Treatment on page 428.
Plants 10–50 (–80) cm. Leaves: basal and proximal often present at, sometimes withered by, flowering; basal blades pinnatifid; proximal blades entire or pinnately toothed or lobed to pinnatifid. Ray corollas 4.5–14 × 2–9 mm. Disc-florets 100–250+; corollas purple distally, 1.6–2.5 mm. Cypselae 0.7–1 mm; pappi of usually 6 scales 1–1.5 mm. 2n = 30.
Phenology: Flowering (Mar–)Apr–Jul(–Nov).
Habitat: Roadsides and fields
Elevation: 200–1500 m
Distribution
Okla., Tex., Mexico (Chihuahua), Mexico (Coahuila)
Discussion
Selected References
None.
Lower Taxa
None.
... more about "Helenium amarum var. badium"
introrse +
connate +
herbaceous +
scarious +
absent +
hirsute +
papillate +
paniculiform +
continuous +
pinnatifid +
decurrent +
pinnatifid;lobed;spatulate;ovate;spatulate;ovate;oblong;oblanceolate;linear;lanceolate;elliptic +
winged;ribbed;winged;ribbed +
1;15 +
stigmatic +
35;150 +
absent +
Basin sneezeweed +
zygomorphic +
monomorphic +
dimorphic +
hairy +
0.7mm;1mm +
staminate +
staminate +
straight +
gland-dotted +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
corymbiform +
singly +
singly +
indeterminate +
10;150 +
surrounding +
globoid;hemispheric;globose +
alternate +
absent +
deltate +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
falling +
hairy +
tough +
thick +
absent +
connate +
persistent +
distinct +
falling +
hairy +
unequal +
Rhodora +
1960 +
pistillate +
absent +
fertile +
epaleate +
pitted +
ovoid;hemispheric;ovoid;hemispheric;globose;conic +
fibrous +
entire +
absent +
aristate +
exalbuminous +
modifed +
alternate +
erect +
2-branched +
papillate +
Helenium amarum var. badium +
Helenium amarum +
variety +
shorter +
dilated +
equaling +
annual +