Chorizanthe angustifolia

Nuttall

Proc. Acad. Nat. Sci. Philadelphia 4: 17. 1848.

Common names: Narrow-leaf spineflower
EndemicConservation concern
Synonyms: Chorizanthe angustifolia var. eastwoodiae Goodman
Treatment appears in FNA Volume 5. Treatment on page 454. Mentioned on page 447, 448.

Plants decumbent or prostrate, 0.3–1 × 0.5–10 (–13) dm, villous. Leaves basal; petiole 1–4 cm; blade oblanceolate, (0.5–) 1–4 (–5) × (0.2–) 0.3–0.6 cm, villous. Inflorescences rather dense with secondary branches suppressed, grayish to reddish; bracts 2, similar to proximal leaf-blades only reduced, short-petiolate, becoming linear and aciculate at distal nodes, acerose, 1–4 cm × 2–8 (–10) mm, awns absent. Involucres 1, reddish, cylindric, not ventricose, 1.5–2 (–2.5) mm, without scarious margins or if so then pinkish, thin, and restricted to basal portion of teeth, not corrugate, villous abaxially; teeth spreading, equal, 0.5–1.5 (–2) mm; awns uncinate with longer ones 1.5–2.5 mm and anterior one mostly 2–2.5 mm, these alternating with shorter 1–1.5 mm ones. Flowers slightly exserted; perianth bicolored with floral-tube white and tepals white to rose, campanulate, 2–3 mm, pubescent abaxially; tepals connate 1/3 their length, monomorphic, oblong, usually rounded and erose apically; stamens 3 or 6–9, slightly exserted; filaments distinct, 2–2.5 mm, glabrous; anthers cream to rose, ovate, 0.2–0.3 mm. Achenes light-brown, globose-lenticular, 2–2.5 mm. 2n = 38, 40, (42, 44, 46).


Phenology: Flowering Apr–Jul.
Habitat: Sandy places, coastal scrub communities, pine-oak woodlands
Elevation: 10-500 m

Discussion

Of conservation concern.

Chorizanthe angustifolia is common along the immediate coast and mesas mainly in west-central California. Plants with slightly scarious, pink involucral margins have been distinguished as var. eastwoodiae, but as both this and the nonscarious var. angustifolia occur together, no distinction is made here. William Gambel obtained the only collection known from Los Angeles County in the 1840s; it has not been found there since. Narrow-leaf spineflower often grows with C. diffusa in intermingled populations and care must be taken to avoid mixed collections.

Selected References

None.

Lower Taxa

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."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.

... more about "Chorizanthe angustifolia"
46] +, 44 +, [42 +, 40 +  and 38 +
light-brown +
globose-lenticular +
cream +  and rose +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
James L. Reveal +
Nuttall +
alternating +
anterior +
uncinate +
unequal +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
alternate +  and rosulate +
stipelike +
awn-tipped +  and simple +
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
oblanceolate +
0.3cm;0.6cm +
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 +
Narrow-leaf spineflower +
10-500 m +
curved +  and straight +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 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 places, coastal scrub communities, pine-oak woodlands +
uniparous +, capitate +  and cymose +
cymelike +, paniclelike +, racemelike +  and spikelike +
connate +  and free +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
not ventricose +  and cylindric +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
nonmembranous +
in whorls +, opposite +, alternate +  and rosulate +
deciduous +  and persistent +
bractlike +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
pubescent +  and glabrous +
lobed +, undulate +, crisped +, crenulate +  and entire +
not swollen +
orthotropous +
accrescent +
curved +  and straight +
erect to deflexed +
cylindric +  and campanulate +
accrescent +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Flowering Apr–Jul. +
homostylous +  and 3-carpellate +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Proc. Acad. Nat. Sci. Philadelphia +
, +  and solid +
slender;stout +
Endemic +  and Conservation concern +
6 (?) +  and 9 (?) +
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 angustifolia var. eastwoodiae +
chambered +, , +  and solid +
Slender (?) +  and Stout (?) +
Chorizanthe angustifolia +
Chorizanthe sect. Ptelosepala +
species +
white +  and rose +
rounded +, oblong +  and campanulate +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
coriaceous +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
shallow +
unequal +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
erect;prostrate;spreading +
3 +, 2 +  and 1 +