Tetradymia comosa

A. Gray

Proc. Amer. Acad. Arts 12: 60. 1877.

Treatment appears in FNA Volume 20. Treatment on page 631. Mentioned on page 630.
Revision as of 20:25, 29 July 2020 by imported>Volume Importer
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Shrubs, 30–120 cm. Stems 1–5+, erect (wandlike), unarmed, evenly pannose. Leaves: primaries lance-linear, stiff, pungent, not spinose, 20–60 (× 2–5) mm, tomentose; secondaries (seldom present) spatulate, 8–15 mm, tomentose. Heads 3–6. Peduncles 3–8 mm. Involucres hemispheric, 8 mm. Phyllaries 5–6, oblanceolate. Florets 5–9; corollas yellow to brownish, 8–9 mm. Cypselae ca. 4 mm, copiously pilose (hairs 6–10 mm); pappi 0.2n = 60.


Phenology: Flowering spring–summer.
Habitat: Mostly sandy sites, chaparral, coastal sage scrub, sagebrush scrub
Elevation: 300–1500 m

Distribution

V20-1421-distribution-map.gif

Calif., Mexico (Baja California)

Discussion

Selected References

None.

Lower Taxa

None.

"[mm" is not declared as a valid unit of measurement for this property."]mm" is not declared as a valid unit of measurement for this property.

... more about "Tetradymia comosa"
not tailed +, rounded +  and obtuse +
papillate +
truncate-penicillate;usually truncate;rounded-truncate +
scarious +
usually ovate +  and lance-linear +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
John L. Strother +
A. Gray +
decurrent +
linear;filiform narrowly lanceolate or oblanceolate +
winged;nerved;ribbed +
barbellulate +  and smooth +
yellow +  and brownish +
0.8 cm8 mm <br />0.008 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
prismatic +  and obconic or fusiform +
fertile +  and bisexual +
fertile +  and bisexual +
Calif. +  and Mexico (Baja California) +
300–1500 m +
glabrescent +, lanate +  and tomentose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Mostly sandy sites, chaparral, coastal sage scrub, sagebrush scrub +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
hemispheric +
8 cm80 mm <br />0.08 m <br /> (?) +
linear +  and lanceolate +
2-carpellate +
of 70 +  and 150 bristles or , , scales +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Flowering spring–summer. +
oblanceolate +
Proc. Amer. Acad. Arts +
styliferous +, neuter +  and pistillate +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
conic;usually flat;convex +
white;stramineous +
subulate +  and setiform +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
exalbuminous +
1 +  and 5 +
appendaged +  and truncate +
papillate +
Compositae +
Tetradymia comosa +
Tetradymia +
species +
perennial +  and annual +