Chorizanthe rectispina

Goodman

Ann. Missouri Bot. Gard. 21: 72. 1934.

Common names: Prickly spineflower
EndemicConservation concern
Treatment appears in FNA Volume 5. Treatment on page 460. Mentioned on page 448.

Plants spreading to decumbent, 0.3–0.8 (–1) × 0.5–4 (–5) dm, appressed-pubescent. Leaves basal; petiole 0.5–2 cm; blade oblanceolate to spatulate, 0.5–1.5 (–2) × 0.2–0.6 cm, thinly pubescent. Inflorescences with involucres in small, open clusters 0.5–1.5 cm diam., greenish to grayish; bracts 2, without whorl of sessile bracts about midstem, usually leaflike, oblanceolate to elliptic, 0.5–1.5 cm × 1.5–5 mm, gradually reduced and becoming scalelike at distal nodes, linear, aciculate, acerose, 0.3–0.8 cm × 1–2 mm, awns straight, 0.5–1.5 mm. Involucres 3–10+, grayish to reddish, urceolate, slightly ventricose basally, 2–2.5 (–3) mm, slightly corrugate, without scarious or membranous margins, densely pubescent; teeth spreading, unequal, 1–2 mm; awns straight or uncinate, unequal, with longer anterior one straight, mostly 1.5–2.5 mm, others uncinate, 0.3–0.6 mm. Flowers exserted; perianth bicolored with floral-tube yellow and tepals yellow or white, cylindric, 3.5–4 mm, sparsely pubescent; tepals connate 1/2 their length, dimorphic, obovate, those of outer whorl white, obovate to nearly orbiculate, 3–4 times longer than those of inner whorl,, truncate to slightly 2-lobed apically, those of inner lobes erect, yellow, broadly obovate, truncate and erose apically; stamens 9, included; filaments distinct, 1–1.5 mm, glabrous; anthers yellow to golden, oblong, 0.5–0.6 mm. Achenes brown, globose-lenticular, 3–3.5 mm. 2n = (36), 40, (44).


Phenology: Flowering May–Jul.
Habitat: Sandy to gravelly flats and slopes, mixed grassland communities, pine-oak woodlands
Elevation: 200-600 m

Discussion

Of conservation concern.

Chorizanthe rectispina is infrequent and localized in the Coast Ranges of west-central California.

Selected References

None.

Lower Taxa

None.

"/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."dm" 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 rectispina"
globose-lenticular +
yellow +  and golden +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
James L. Reveal +
Goodman +
alternating +
straight +
uncinate +
unequal +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
alternate +  and rosulate +
stipelike +
awn-tipped +  and simple +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
oblanceolate;spatulate +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
deciduous +
distinct +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
glandular +, woolly-floccose +, tomentose +, strigose +, villous +, hirsute +  and pubescent +
acerose +, scale-like +, oblanceolate +  and elliptic +
reduced +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
disarticulating +, dichotomous +, branched +  and open +
erect +  and spreading +
just below the soil surface or and above the soil surface +  and spreading +
Prickly spineflower +
200-600 m +
curved +  and straight +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
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 +
Sandy to gravelly flats and slopes, mixed grassland communities, pine-oak woodlands +
uniparous +, capitate +  and cymose +
cymelike +, paniclelike +, racemelike +  and spikelike +
connate +  and free +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
grayish +  and reddish +
ventricose +  and urceolate +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
nonmembranous +
lanceolate +  and ovate or spatulate +
in whorls +, opposite +, alternate +  and rosulate +
deciduous +  and persistent +
bractlike +
pubescent +  and glabrous +
lobed +, undulate +, crisped +, crenulate +  and entire +
membranous +  and scarious +
not swollen +
uncinate +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
orthotropous +
accrescent +
curved +  and straight +
erect to deflexed +
cylindric +  and campanulate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Flowering May–Jul. +
homostylous +  and 3-carpellate +
Ann. Missouri Bot. Gard. +
, +  and solid +
slender;stout +
Endemic +  and Conservation concern +
not 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 +
Chorizanthe sect. Anisogonum +, Chorizanthe sect. Eriogonellopsis +  and Chorizanthe sect. Herbaceae +
chambered +, , +  and solid +
slender +  and stout +
Chorizanthe rectispina +
Chorizanthe sect. Ptelosepala +
species +
white +  and yellow +
cylindric +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
coriaceous +
shallow +
unequal +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
spreading;decumbent +
appressed-pubescent +
3 +, 2 +  and 1 +
yellow +  and white +
3-4 times longer than +