Sidalcea hickmanii subsp. parishii

(B. L. Robinson) C. L. Hitchcock

Perenn. Sp. Sidalcea, 79. 1957.

Common names: Parish’s checkerbloom
Conservation concernEndemicIllustrated
Basionym: Sidalcea hickmanii var. parishii B. L. Robinson in A. Gray et al., Syn. Fl. N. Amer. 1(1,2): 307. 1897 (as hickmani)
Synonyms: S. parishii
Treatment appears in FNA Volume 6. Treatment on page 336. Mentioned on page 335, 337.

Plants 0.4–0.8 m, with caudex and taproot. Stems erect, gray-green, sometimes brick-reddish proximally, coarsely stellate-hairy, hairs grayish, to 2 mm diam. Leaves: stipules lanceolate, 5–6 × 2 mm; petiole 2–3 (–7) cm, 1/2–3 times as long as blade, shortest on distalmost leaves; blade rounded to truncate or wide-cordate, unlobed or very shallowly lobed, margins crenate, proximal 3–7 (–10) × 3–7 (–10) cm, distal usually flabelliform, unlobed or very shallowly incised to 1/4 length, 2–3 × 1.8–2.5 cm, surfaces stellate-hairy, hairs usually overlapping. Inflorescences erect or ascending, often dense and spiciform when young, more open and elongating in age, unbranched or few-branched, 2–10 cm; bracts paired, distinct, broadly lanceolate, 5–7 (–10) × 2.5–4 mm, much longer than pedicels, slightly shorter than calyx. Pedicels 1–2 mm, obscured by bracts; involucellar bractlets 3, 5–7 mm, equaling or slightly shorter than calyx. Flowers bisexual; calyx 8–10 mm, stellate-hairy, often sparsely so, sometimes with coarser, longer, stellate hairs; petals pale-pink to pinkish lavender, 11–15 mm; staminal column 6–7 mm, hairy; anthers white to pale-yellow; stigmas 6 or 7 (–10). Schizocarps 5–7 mm diam.; mericarps 6 or 7 (–10), (1.5–) 2–2.5 mm; back and margins with 9 corrugations. Seeds 1.5–2 mm. 2n = 20.


Phenology: Flowering Jun–Aug.
Habitat: Chaparral, cis/montane woodlands, open conifer forests
Elevation: 1000–2200 m

Discussion

Subspecies parishii is the most variable of the subspecies and is found in at least two widely distant, isolated populations, each with metapopulations. It most closely resembles subsp. hickmanii; it can be distinguished from that by its wider, longer bracts, its more deeply crenate leaves, and its range. It is threatened by grazing, urbanization, fire-suppression, and road maintenance, and is listed as rare in California. Subspecies parishii is found in the outer South Coast Ranges, western Transverse Ranges, and San Bernardino Mountains in Santa Barbara and San Bernardino counties.

Of conservation concern.

Selected References

None.

Lower Taxa

None.
white +  and pale-yellow +
Steven R. Hill +
(B. L. Robinson) C. L. Hitchcock +
0.2 cm2 mm <br />0.002 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
cordate +, truncate +  and ovate +
widest;1mm;3mm +
Sidalcea hickmanii var. parishii +
lobed +, unlobed +, rounded +  and truncate or wide-cordate +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
distinct +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
proximalmost +
lanceolate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
slightly longer +
shorter to slightly +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
2-20+-flowered +, unbranched +  and branched +
not +  and overlapping +
stellate-hairy +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
indehiscent +  and loculicidal +
Parish’s checkerbloom +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
unlobed;flabelliform +
1.8 cm18 mm <br />0.018 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
1000–2200 m +
sparse;copious +
Chaparral, cis/montane woodlands, open conifer forests +
both +  and simple +
overlapping +
0mm +  and 2mm +
coarser +
few-branched +, unbranched +, open +  and spiciform +
ascending +  and erect +
axillary +  and terminal +
2 cm20 mm <br />0.02 m <br /> (10 cm100 mm <br />0.1 m <br />) +
tough-fibrous +
connate +  and distinct +
simple +, stipulate +, sessile +, subsessile +  and petiolate +
reticulate-veined +
entire +  and serrate +
1cm +  and 7cm +
not pitted +  and corrugated +
thin +, usually wider than long +, 1cm +  and 7cm +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
wedge--shaped +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
3-40-carpellate +
(1-)2-many +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
adnate +  and distinct +
1.1 cm11 mm <br />0.011 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
3 cm30 mm <br />0.03 m <br /> (7 cm70 mm <br />0.07 m <br />) +
1/2-3 times as long as blade +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Flowering Jun–Aug. +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
3 cm30 mm <br />0.03 m <br /> (25 cm250 mm <br />0.25 m <br />) +
7 cm70 mm <br />0.07 m <br /> (10 cm100 mm <br />0.1 m <br />) +
7 cm70 mm <br />0.07 m <br /> (10 cm100 mm <br />0.1 m <br />) +
3 cm30 mm <br />0.03 m <br /> (7 cm70 mm <br />0.07 m <br />) +
3 cm30 mm <br />0.03 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Perenn. Sp. Sidalcea, +
elongated +
5mm +  and 7mm +
hairy +  and glabrous +
reniform +
1.5mm +  and 2mm +
persistent +
Conservation concern +, Endemic +  and Illustrated +
sessile +  and subsessile +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
solid +, unbranched +  and branched +
brick-reddish +  and gray-green +
several;many +
7 +  and 6 +
filiform +, linear +  and capitate +
1-2 times number of carpels +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
2 cm20 mm <br />0.02 m <br /> (?) +
unbranched +  and branched +
stellate-hairy +
S. parishii +
Sidalcea hickmanii subsp. parishii +
Sidalcea hickmanii +
subspecies +
0.5 cm5 mm <br />0.005 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
monoecious +, dioecious +  and hermaphroditic +