Orochaenactis

Coville

Contr. U.S. Natl. Herb. 4: 134, plate 10. 1893.

Common names: California mountain-pincushion
Etymology: Greek horos, mountain, and generic name Chaenactis
Treatment appears in FNA Volume 21. Treatment on page 414. Mentioned on page 182, 364, 366, 401.
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 TaxonIllustrator 
FNA21 P63 Chaenactis douglasii.jpegChaenactis douglasii var. douglasii
Chaenactis douglasii var. alpina
Chaenactis xantiana
Chaenactis stevioides
Orochaenactis thysanocarpha
Linny Heagy
Linny Heagy
Linny Heagy
Linny Heagy
John Myers

Annuals, 1–25 cm. Stems erect to spreading, simple or ± branched (very slender). Leaves cauline; opposite (proximal) or alternate; obscurely petiolate or sessile; blades linear to narrowly oblong-oblanceolate, margins entire, faces tomentose to glabrate, glanddotted. Heads discoid, borne singly or (2–5) in clusters (at stem tips). Involucres cylindric or narrowly turbinate, 3–4 (–6) mm diam. Phyllaries persistent, 4–7 in ± 1 series (distinct, oblong, unequal, glandular-puberulent). Receptacles ± flat, ± knobby, epaleate. Ray-florets 0. Disc-florets 4–9; corollas yellow, lobes 5, short-triangular (anther bases short-sagittate, appendages short-triangular; style-branches linear, tapering). Cypselae terete, linear-clavate, narrowly ribbed, minutely glandular-puberulent, glabrescent; pappi falling (in rings), of 11–17 (basally connate) oblanceolate, fringed, obtuse scales. x = 9.

Discussion

Species 1.

Selected References

None.

... more about "Orochaenactis"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
paniculiform +, cymiform +  and corymbiform +
indeterminate +  and determinate +
David J. Keil +
Coville +
decurrent +
compound +  and simple +
linear;narrowly oblong-oblanceolate +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
connate +  and distinct +
California mountain-pincushion +
stipitate-glandular +  and hairy +
glabrescent +  and glandular-puberulent +
linear-clavate +  and terete +
fertile +  and bisexual +
fertile +  and bisexual +
Greek horos, mountain, and generic name Chaenactis +
tomentose +  and glabrate +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
campanulate +  and cylindric +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
turbinate;cylindric +
sessile +  and petiolate +
alternate +  and opposite +
short-triangular +
2-carpellate +
persistent +
aristate +
Contr. U.S. Natl. Herb. +
bearing subulate enations +, hairy +  and bristly +
distinct +
11 +  and 17 +
obtuse +, fringed +  and oblanceolate +
exalbuminous +
branched +  and simple +
erect +  and spreading +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Bahiinae +  and Undefined (tribe Undefined) subtribe Palafoxiinae +
Orochaenactis +
Asteraceae (tribe Heliantheae) subtribe Chaenactidinae +
campanulate +  and cylindric +
80 cm800 mm <br />0.8 m <br /> (300 cm3,000 mm <br />3 m <br />) +
1 cm10 mm <br />0.01 m <br /> (80 cm800 mm <br />0.8 m <br />) +
toothed +  and entire +
80 cm800 mm <br />0.8 m <br /> (300 cm3,000 mm <br />3 m <br />) +
1 cm10 mm <br />0.01 m <br /> (25 cm250 mm <br />0.25 m <br />) +
80 cm800 mm <br />0.8 m <br /> (300 cm3,000 mm <br />3 m <br />) +
shrub +  and subshrub +