Chorizanthe corrugata

(Torrey) Torrey & A. Gray

Proc. Amer. Acad. Arts 8: 198. 1870.

Common names: Wrinkled spineflower
Basionym: Acanthogonum corrugatum Torrey in War Department [U.S.], Pacif. Railr. Rep. 5(2): 364. 1857
Treatment appears in FNA Volume 5. Treatment on page 468. Mentioned on page 447, 466, 469.

Plants erect, 0.3–1.5 × 0.3–1 dm, thinly tomentose. Leaves basal or nearly so; petiole 0.5–2 (–3) cm; blade round-ovate, (0.5–) 0.8–1.5 (–2) × (0.3–) 0.5–1.5 (–2) cm, thinly floccose to tomentose. Inflorescences with involucres in small clusters 0.5–1 cm diam., green to tan or reddish; bracts 2, linear to linear-lanceolate, acicular, 2–7 cm × 1–2.5 mm, awns slightly curved, 0.5–1 mm. Involucres 1, green to tan, cylindric, 3-angled but 3-ribbed, 3–4 mm, markedly transverse corrugate, glabrate; teeth 3, equal, 2–4.5 mm; awns uncinate, 0.6–1 mm. Flowers 1, included to slightly exserted; perianth white, cylindric, 2–2.5 mm, thinly pubescent abaxially; tepals connate ca. 2/3 their length, monomorphic, oblong, acute, entire apically; stamens 6, slightly exserted; filaments distinct, 0.8–1 mm, glabrous; anthers cream, ovate, 0.4–0.5 mm. Achenes brown, lenticular, 2.5–3 mm. 2n = 38.


Phenology: Flowering Feb–May.
Habitat: Sandy to gravelly flats and slopes, mixed grassland, saltbush, creosote bush, and sagebrush communities
Elevation: -70-1000 m

Distribution

V5 983-distribution-map.gif

Ariz., Calif., Nev., Mexico (Baja California), Mexico (Sonora)

Discussion

Chorizanthe corrugata is found mainly in the Mojave and Sonoran deserts. The narrow, transversely corrugated involucral tube is diagnostic. Some anomalous flowers with four or eight stamens have been seen but this condition was always associated with other flowers bearing the normal number.

Selected References

None.

Lower Taxa

None.

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

... more about "Chorizanthe corrugata"
lenticular +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
James L. Reveal +
(Torrey) Torrey & A. Gray +
alternating +
anterior +
uncinate +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
alternate +  and rosulate +
stipelike +
Acanthogonum corrugatum +
awn-tipped +  and simple +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
thinly floccose +  and tomentose +
round-ovate +
0.5cm;1.5cm +
awnless +  and awned +
deciduous +
distinct +
2 cm20 mm <br />0.02 m <br /> (7 cm70 mm <br />0.07 m <br />) +
glandular +, woolly-floccose +, tomentose +, strigose +, villous +, hirsute +  and pubescent +
acicular +, linear +  and linear-lanceolate +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
disarticulating +, dichotomous +, branched +  and open +
erect +  and spreading +
just below the soil surface or and above the soil surface +  and spreading +
Wrinkled spineflower +
Ariz. +, Calif. +, Nev. +, Mexico (Baja California) +  and Mexico (Sonora) +
-70-1000 m +
curved +  and straight +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
white +  and pink or rose maroon or purple or yellow +
included +  and slightly exserted +
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 +
Sandy to gravelly flats and slopes, mixed grassland, saltbush, creosote bush, and sagebrush communities +
uniparous +, capitate +  and cymose +
cymelike +, paniclelike +, racemelike +  and spikelike +
connate +  and free +
green +  and tan +
3-angled +  and cylindric +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
nonmembranous +
in whorls +, opposite +, alternate +  and rosulate +
deciduous +  and persistent +
nearly +  and basal +
bractlike +
pubescent +  and glabrous +
lobed +, undulate +, crisped +, crenulate +  and entire +
not swollen +
orthotropous +
accrescent +
curved +  and straight +
erect to deflexed +
cylindric +
accrescent +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Flowering Feb–May. +
homostylous +  and 3-carpellate +
Proc. Amer. Acad. Arts +
, +  and solid +
slender;stout +
not disarticulating +
decumbent to erect +  and prostrate +
prostrate +  and erect +
penicillate +, fimbriate +  and capitate +
deciduous +  and persistent +
? (?) +  and ? (?) +
coriaceous +  and membranous +
consisting of a series +  and tubular +
distinct +
erect;spreading +
Chorizanthe sect. Chorizanthella +
chambered +, , +  and solid +
Slender (?) +  and Stout (?) +
Chorizanthe corrugata +
Chorizanthe sect. Acanthogonum +
species +
acute +  and oblong +
coriaceous +
shallow +
erect +  and spreading +
unequal +
0.2 cm2 mm <br />0.002 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
3 +, 2 +  and 1 +