Kyhosia

B. G. Baldwin

Novon 9: 465. 1999.

Etymology: For Donald William Kyhos, b. 1929, Californian botanist
Treatment appears in FNA Volume 21. Treatment on page 295. Mentioned on page 255, 296, 297, 300, 303.
 TaxonIllustrator 
FNA21 P46 Holozonia filipes.jpegHolozonia filipes
Kyhosia bolanderi
Hemizonella minima
Yevonn Wilson-Ramsey
Barbara Alongi
Yevonn Wilson-Ramsey

Perennials, 50–120 cm (rhizomatous; self-incompatible). Stems (aerial) erect. Leaves basal and cauline (at flowering); proximal opposite (basalmost in rosettes), distal alternate; sessile; blades lance-linear to linear, margins entire, faces hirsute and (distal leaves) glandular-hirtellous. Heads radiate, borne singly or in loose, ± corymbiform arrays. Peduncular bracts: pit-glands, tack-glands, and/or spines 0. Involucres ± campanulate to hemispheric, 6–12+ mm diam. Phyllaries 8–12 in 1 series (each mostly or wholly enveloping a ray ovary, lanceolate to lance-linear, herbaceous, abaxially hirsute and glandular-hirtellous). Receptacles flat to convex, glabrous, paleate (paleae falling, in 1 series between rays and discs, weakly connate or distinct). Ray-florets 8–12, pistillate, fertile; corollas bright-yellow. Disc-florets 28–65, bisexual and fertile; corollas bright-yellow, pubescent, tubes shorter than funnelform throats, lobes 5, deltate (anthers ± dark purple; styles glabrous proximal to branches). Ray cypselae (black) compressed, clavate (arcuate, basal attachments centered, apices beakless, faces glabrous or hispidulous); pappi 0, or coroniform. Disc cypselae (brown to black) ± terete (straight or arcuate, faces hispidulous, otherwise similar to rays); pappi of 5–10 (stramineous to purplish) lanceolate to subulate, ciliate to plumose scales. x = 6.

Distribution

w United States

Discussion

Species 1.

Kyhosia has been treated as congeneric with Madia, which is evidently more closely related to the Hawaiian silversword alliance (Argyroxiphium, Dubautia, and Wilkesia) than to Kyhosia (B. G. Baldwin 1996). Head architecture is similar in Kyhosia and Argyroxiphium, as noted by S. Carlquist (1959). Kyhosia is the only perennial tarweed with 2n = 12.

Selected References

None.

Lower Taxa

... more about "Kyhosia"
not tailed +, rounded +  and obtuse +
pale +  and dark +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
umbelliform +, spiciform +, paniculiform +, glomerulate +  and corymbiform +
indeterminate +  and determinate +
Bruce G. Baldwin +  and John L. Strother +
B. G. Baldwin +
decurrent +
compound +  and simple +
linear to linear-elliptic +
lobed;usually spatulate;oblanceolate +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
bright-yellow +
hairy +  and glabrous +
fusiform +, clavate +, obpyramidal +, terete +, compressed +  and obcompressed +
fertile +  and bisexual +
fertile +  and bisexual +
w United States +
For Donald William Kyhos, b. 1929, Californian botanist +
glandular-hirtellous +  and hirsute +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
in loose , more or less corymbiform arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.6 cm6 mm <br />0.006 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
less campanulate;hemispheric +
petiolate +  and sessile +
alternate +  and opposite +
cauline +  and basal +
deltate +
2-carpellate +
persistent +
coroniform +
8 +  and 12 +
clavate +  and compressed +
flat;convex +
5 +  and 10 +
lanceolate +  and subulate ciliate +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Compositae +
Kyhosia +
Asteraceae (tribe Heliantheae) subtribe Madiinae +
cylindric +
toothed +  and entire +
50 cm500 mm <br />0.5 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
shrub +  and subshrub +