Chorizanthe robusta

Parry

Proc. Davenport Acad. Nat. Sci. 5: 176. 1889.

EndemicConservation concern
Treatment appears in FNA Volume 5. Treatment on page 455. Mentioned on page 447.

Plants erect to spreading or decumbent, 0.5–3 × 0.1–6 dm, villous. Leaves basal or nearly so; petiole 1–4 (–7) cm; blade oblanceolate, 1.5–5 × 0.2–0.7 (–1) cm, villous. Inflorescences with secondary branches not suppressed except in terminal clusters of involucres, green to reddish; bracts 2, similar to proximal leaf-blades only reduced, short-petiolate, becoming linear and aciculate at distal nodes, acerose, 1–5 cm × 2–5 (–7) mm, awns absent. Involucres 1, greenish, cylindric, not ventricose, 2.5–4 mm, with white to pinkish, thin scarious margins restricted to basal portion of teeth, not corrugate, thinly pubescent abaxially; teeth spreading, equal, 0.3–0.8 (–1) mm; awns uncinate with longer ones 0.7–1.3 mm and anterior one mostly 1–1.3 mm, these alternating with shorter (0.3–0.7 mm) ones. Flowers slightly exserted; perianth bicolored with floral-tube white and tepals white to rose, cylindric, 2.5–4 mm, pubescent abaxially; tepals connate 1/4 their length, monomorphic, oblanceolate to narrowly oblong, usually truncate to rounded and erose or denticulate apically, occasionally distinctly cuspidate; stamens 9, included; filaments distinct, 2–3.5 mm, glabrous; anthers pink to red or maroon, oblong, 0.6–0.8 mm. Achenes light-brown, globose-lenticular, 3.5–4 mm.

Discussion

Varieties 2 (2 in the flora).

Selected References

None.

Key

1 Margins of involucres white; plants spreading or decumbent; sandy to gravelly places; Alameda and San Mateo counties s in mountains and near coast to n Monterey County Chorizanthe robusta var. robusta
1 Margins of involucres rose-pink; plants erect; annual grasslands near Scotts Valley, Santa Cruz Mountains, Santa Cruz County Chorizanthe robusta var. hartwegii

"/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.

... more about "Chorizanthe robusta"
light-brown +
globose-lenticular +
pink +  and red or maroon +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
James L. Reveal +
alternating +
anterior +
uncinate +
unequal +
0.1 cm1 mm <br />0.001 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
alternate +  and rosulate +
stipelike +
awn-tipped +  and simple +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 m <br />) +
oblanceolate +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
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 +
wc Calif. +
curved +  and straight +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 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 +
uniparous +, capitate +  and cymose +
cymelike +, paniclelike +, racemelike +  and spikelike +
connate +  and free +
not ventricose +  and cylindric +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
nonmembranous +
lanceolate +  and ovate or spatulate +
in whorls +, opposite +, alternate +  and rosulate +
deciduous +  and persistent +
nearly +  and basal +
bractlike +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
white +  and pinkish +
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 +
4 cm40 mm <br />0.04 m <br /> (7 cm70 mm <br />0.07 m <br />) +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
homostylous +  and 3-carpellate +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Proc. Davenport Acad. Nat. Sci. +
, +  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 robusta +
Chorizanthe sect. Ptelosepala +
species +
white +  and rose +
denticulate +, oblanceolate +  and narrowly oblong usually truncate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
coriaceous +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
shallow +
unequal +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
persistent +
membranous +
pubescent +  and glabrous +
erect;spreading or decumbent +
3 +, 2 +  and 1 +