Chaenactis parishii

A. Gray

Proc. Amer. Acad. Arts 20: 299. 1885.

Common names: Parish chaenactis
Conservation concern
Treatment appears in FNA Volume 21. Treatment on page 404. Mentioned on page 403.

Subshrubs, (10–) 20–40 (–60) cm (not cespitose or matted); proximal indument (especially of stems) persistent, whitish, densely lanuginose or pannose. Stems mostly 5–15+, erect. Leaves mostly cauline, (1–) 2–5 cm; largest blades lanceovate or deltate, ± plane, 1-pinnately lobed; lobes mostly 2–5 pairs, remote, ± plane. Heads mostly 1–3 per stem. Peduncles ascending to erect, 2–8 (–20) cm. Involucres ± obconic. Phyllaries: longest 10–13 mm; outer predominantly arachnoid to closely lanuginose (sparsely, if at all, stipitate-glandular), apices ± squarrose, pliant. Corollas 7–8.5 mm. Cypselae 4–7 mm; pappi: longest scales 6–8 mm. 2n = 12.


Phenology: Flowering May–Jul.
Habitat: Open rocky to sandy soils in low montane chaparral
Elevation: 1300–2500 m

Distribution

V21-1016-distribution-map.gif

Calif., Mexico (Baja California)

Discussion

Of conservation concern.

Chaenactis parishii is sometimes cultivated in rock gardens. It is known from small, isolated populations in the higher Peninsular Ranges of Riverside and San Diego counties and adjacent Baja California. Chaenactis parishii and C. suffrutescens form a species pair well marked by the (usually) subshrubby habit, proximal indument persistent, white, felty, heads relatively large, and largest leaf blades lance-ovate to deltate.

Selected References

None.

Lower Taxa

None.

"longest" is not a number.

... more about "Chaenactis parishii"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
paniculiform +, cymiform +  and corymbiform +
indeterminate +  and determinate +
James D. Morefield +
A. Gray +
decurrent +
Undefined sect. Macrocarphus +
compound +  and simple +
lobed;ovate;oblanceolate;ovate;oblanceolate;linear;deltate +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
connate +  and distinct +
Parish chaenactis +
actinomorphic +
white +  and pinkish or cream +
stipitate-glandular +  and hairy +
0.7 cm7 mm <br />0.007 m <br /> (0.85 cm8.5 mm <br />0.0085 m <br />) +
fertile +  and bisexual +
fertile +  and bisexual +
Calif. +  and Mexico (Baja California) +
1300–2500 m +
strigose +  and densely sericeous +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
campanulate +  and cylindric +
Open rocky to sandy soils in low montane chaparral +
in more or less cymiform arrays +, singly +  and radiant +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
lobed +, plane +, deltate +  and lanceovate +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
2 cm20 mm <br />0.02 m <br /> (?) +  and 5 cm50 mm <br />0.05 m <br /> (?) +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
dentate to pinnatifid or palmatifid +  and entire +
predominantly arachnoid +  and closely lanuginose +
2-carpellate +
persistent +
coroniform +
8 cm80 mm <br />0.08 m <br /> (20 cm200 mm <br />0.2 m <br />) +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Flowering May–Jul. +
5 +  and 21 +
1 cm10 mm <br />0.01 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
pannose +  and lanuginose +
Proc. Amer. Acad. Arts +
bearing subulate enations +, hairy +  and bristly +
knobby;convex;more or less flat +
distinct +
10 +  and 20 +
exalbuminous +
unequal +
Conservation concern +
5 +  and 15 +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Bahiinae +  and Undefined (tribe Undefined) subtribe Palafoxiinae +
Chaenactis parishii +
Chaenactis sect. Macrocarphus +
species +
cylindric +
80 cm800 mm <br />0.8 m <br /> (300 cm3,000 mm <br />3 m <br />) +
1 cm10 mm <br />0.01 m <br /> (80 cm800 mm <br />0.8 m <br />) +
toothed +  and entire +
70 cm700 mm <br />0.7 m <br /> (200 cm2,000 mm <br />2 m <br />) +
perennial +  and biennial +
5 cm50 mm <br />0.05 m <br /> (70 cm700 mm <br />0.7 m <br />) +