Chorizanthe sect. Fragile

Reveal & Hardham

Phytologia 66: 188. 1989.

Treatment appears in FNA Volume 5. Treatment on page 469. Mentioned on page 446.

Plants spreading to erect. Leaf-blades oblanceolate to narrowly elliptic or spatulate. Stems disarticulating at each node. Inflorescences: bracts awned; involucres cylindric, slightly ventricose basally, 3-angled, 6-ribbed, 6-toothed, without membranous or scarious margins; awns equal. Flowers 1; perianth greenish white to white or pale yellowish white, glabrous; stamens 3, adnate at top of perianth-tube. Achenes dark-brown, lenticular.

Distribution

w United States, nw Mexico

Discussion

Species 2 (1 in the flora).

Chorizanthe brevicornu of western North America, and its counterpart in western South America, C. commissuralis J. Rémy, are the most widely distributed members of the genus on their respective continents. The flowering stems and branches easily break apart, often with involucres still firmly attached. Even in this disarticulated condition, young achenes will continue to live and mature. No doubt this is a significant factor in their successful distribution.

Selected References

None.

"/2" is not declared as a valid unit of measurement for this property."/2" is not declared as a valid unit of measurement for this property.

... more about "Chorizanthe sect. Fragile"
lenticular +
maroon +  and red or cream +
oval +  and oblong +
James L. Reveal +
Reveal & Hardham +
alternating +
alternate +  and rosulate +
stipelike +
awn-tipped +  and simple +
linear;oblanceolate or spatulate +
deciduous +
distinct +
glandular +, woolly-floccose +, tomentose +, strigose +, villous +, hirsute +  and pubescent +
scale-like +
disarticulating +, dichotomous +, branched +  and open +
erect +  and spreading +
just below the soil surface or and above the soil surface +  and spreading +
w United States +  and nw Mexico +
curved +  and straight +
connate +  and adnate +
pubescent +  and glabrous +
white +  and pink or rose maroon or purple or yellow +
decumbent to erect +  and prostrate +
unwinged +  and winged +
black +, red +, brown +  and yellowish +
exserted +  and included +
pubescent +  and glabrous +
spheroidal +, 4-gonous +, lenticular +, biconvex +, discoid +, 3-gonous +  and 2-gonous +
uniparous +, capitate +  and cymose +
cymelike +, paniclelike +, racemelike +  and spikelike +
connate +  and free +
6-toothed +, 3-angled +, ventricose +  and cylindric +
nonmembranous +
oblanceolate +  and narrowly elliptic or spatulate +
in whorls +, opposite +, alternate +  and rosulate +
deciduous +  and persistent +
cauline +  and basal +
bractlike +
pubescent +  and glabrous +
lobed +, undulate +, crisped +, crenulate +  and entire +
scarious +  and membranous +
not swollen +
orthotropous +
accrescent +
curved +  and straight +
erect to deflexed +
white;greenish white;white or pale yellowish +
cylindric +  and campanulate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
homostylous +  and 3-carpellate +
, +  and solid +
slender;stout +
disarticulating +
decumbent to erect +  and prostrate +
prostrate +  and erect +
penicillate +, fimbriate +  and capitate +
deciduous +  and persistent +
2-lobed +  and cylindric +
coriaceous +  and membranous +
consisting of a series +  and tubular +
distinct +
erect;spreading +
spreading;erect +
chambered +, , +  and solid +
slender +  and stout +
Chorizanthe sect. Fragile +
Chorizanthe subg. Amphietes +
section +
lobed +  and laciniate +
coriaceous +
shallow +
erect +  and spreading +
unequal +
persistent +
membranous +
pubescent +  and glabrous +
3 +, 2 +  and 1 +