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Annuals, to 70 cm. Leaves linear or pinnately lobed, 25–35 mm, lobes 5–9, linear (each with oil-gland at base). Peduncles 3–6 cm. Calyculi of 3–5 subulate bractlets 3–5 mm (eglandular). Involucres broadly campanulate to obconic, 7–8 mm. Phyllaries 8–13, narrowly to broadly oblanceolate, remaining connate in fruit. Ray-florets usually 8; corollas yellow-orange; tubes 3 mm, laminae 2 × 1 mm. Disc-florets 30–50; corollas pale-yellow, often tipped with crimson, 4–5 mm. Cypselae 3.5–4.5 mm; pappi of 10 outer, erose scales 0.7–1 mm plus 10 inner, unequally 3-aristate scales 5–6.5 mm. 2n = 14.
Phenology: Flowering fall.
Habitat: Wettish sites in otherwise arid areas, coarse, sandy alluvium
Elevation: 1500–2600 m
Distribution
Ariz., N.Mex., Mexico (Chihuahua)
Discussion
Selected References
None.
Lower Taxa
None.
... more about "Adenophyllum wrightii var. wrightii"
introrse +
connate +
herbaceous +
scarious +
absent +
hirsute +
papillate +
continuous +
decurrent +
lobed;linear;oblanceolate;linear;oblanceolate;ovate +
winged;ribbed;winged;ribbed +
subulate +
stigmatic +
20;50 +
absent +
tipped +
monomorphic +
dimorphic +
obpyramidal +
3.5mm;4.5mm +
staminate +
straight +
scabrellous +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
connate +
cylindric +
singly +
discoid +
singly +
indeterminate +
surrounding +
broadly campanulate;obconic +
opposite +
cauline +
lobed;linear +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
falling +
absent +
coroniform +
tough +
thick +
absent +
connate +
persistent +
distinct +
falling +
unequal +
Smithsonian Contr. Knowl. +
1853 +
pistillate +
absent +
fertile +
epaleate +
pitted +
convex +
fibrous +
outer +
3-aristate +
exalbuminous +
modifed +
1;2 +
alternate +
branched +
erect +
2-branched +
papillate +
Adenophyllum wrightii var. wrightii +
Adenophyllum wrightii +
variety +
cylindric +
shorter +
much longer +
3 cm30 mm <br />0.03 m <br /> (?) +
toothed +
annual +
subshrub +