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cut leaf checker mallow, cut-leaf checkerbloom

dwarf checkerbloom, southern checkerbloom

Habit Herbs, perennial, (0.1–)0.2–0.4(–0.6) m, pale-glaucous, with thick, rather woody taproot and simple or branched caudex, without rhizomes. Herbs, perennial, 0.2–0.8 m, not glaucous, with thick, fibrous caudex or taproot and short rootstocks, rhizomes developed or not, 3–5 mm diam.
Stems

clustered, usually erect or ascending, sometimes proximally decumbent or prostrate, not rooting, solid, sparsely to densely appressed stellate-hairy.

1–20, clustered, erect to ascending or decumbent, usually not rooting, solid, proximally hairy, hairs simple, stellate, or mixed, 0.5–1.5 mm, distally usually stellate-hairy or glabrous.

Leaves

mostly basal, persistent, to 10+;

stipules linear-lanceolate to elliptic, 5–6 × 2 mm on proximal stem, 4–5 × 0.5 mm on distal stem;

petiole 5.5–16 cm, basal 3–5 times longer than blades, reduced distally to 1/2 times as long as blades;

blades: basal reniform-orbiculate, palmately (5–)7–9-lobed, deeply incised, (1.5–)2.5–4(–6) × (1.5–)2.5–4(–6) cm, base cordate, margins entire, apex rounded to acute, lobes linear to oblong, again deeply pinnately or ternately 3–5-lobed;

cauline ternately lobed, lobes linear to filiform, narrowest on distalmost leaves, somewhat fleshy, surfaces hairy, hairs appressed, stellate;

distalmost leaf lobes unlobed.

mostly basal, cauline to 5, (plant sometimes scapose);

stipules linear to lanceolate, 2–8 × 1–1.5 mm;

petioles of basal leaves 5–10(–25) cm, often 5 times blade length, distally reduced to 1/2 times blade length;

blade orbiculate to reniform, 2–6(–8) × 2–6(–8) cm, base cordate, apex rounded, surfaces stellate-hairy abaxially, moderately minutely stellate-hairy to appressed-hairy adaxially, basal leaves usually shallowly 7-lobed, sometimes unlobed and margins crenate, cauline smaller, palmately 3–5-lobed ± to base, lobe margins entire or incised.

Inflorescences

erect, open, calyces not conspicuously overlapping except sometimes in bud, usually unbranched, usually 3–9(–15)-flowered, elongate, 1-sided, to 7–25 cm;

bracts usually paired, linear or lanceolate to narrowly ovate, proximal divided to base, distalmost 2-fid or simple, 5 mm, shorter to longer than pedicels.

usually ascending, ± open, calyces not conspicuously overlapping except sometimes in bud, branched or unbranched, 10+-flowered, most flowers spaced 1+ cm apart, elongated, extending well above leaves, narrow, often 1-sided, (15–)30–45 cm;

bracts lanceolate, mostly 2-fid, proximal bracts divided ± to base, distal sometimes undivided.

Pedicels

3–8(–10) mm;

involucellar bractlets absent.

2–8(–15) mm;

involucellar bractlets absent.

Flowers

usually bisexual or, infrequently, unisexual and pistillate, plants gynodioecious;

calyx (6–)7–10 mm, slightly enlarged in fruit, uniformly minutely stellate-puberulent;

petals pink to rose, pale-veined at least when dry, 9–20(–25) mm, pistillate shortest;

staminal column 3.3–7.5 mm, sparsely stellate-hairy;

anthers pale yellowish to white;

stigmas 6 or 7.

bisexual or unisexual and pistillate, plants gynodioecious;

calyx 6–10 mm, densely to sparsely stellate-puberulent, hairs usually longer, coarser, 2–4-rayed especially at margins and over veins;

petals pinkish rose to pinkish lavender or magenta, pale-veined or not, base often white, 10–25 mm, pistillate darker, 6–15 mm, bisexual 12–25(–30) mm;

staminal column 5–6 mm, puberulent;

anthers white;

stigmas (6 or)7–9.

Seeds

1.5–2 mm.

2.5 mm.

Schizocarps

5–7 mm diam.;

mericarps 6 or 7, 3.5–4.3 mm, roughened, back finely glandular-puberulent, sides and back coarsely reticulate-veined, pitted, mucro 0.5–1 mm.

5–6 mm diam.;

mericarps (6 or)7–9, 2.5–3 mm, roughened, glandular-puberulent, lightly to moderately reticulate-veined, pitted, mucro 0.5–1 mm.

2n

= 20.

= 20, 40.

Sidalcea multifida

Sidalcea sparsifolia

Phenology Flowering May–Jul(–Sep). Flowering Mar–Jun(–Sep).
Habitat Dry places, sagebrush scrub, pinyon-juniper or pine forests Moist, often grassy, open places, often on mesas, chaparral, pine-oak openings
Elevation (1200–)2000–2500(–2900) m ((3900–)6600–8200(–9500) ft) 10–2200 m (0–7200 ft)
Distribution
from FNA
CA; NV
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; Mexico (Baja California)
[WildflowerSearch map]
[BONAP county map]
Discussion

Sidalcea multifida is generally a low-growing plant of high elevations, and usually can be distinguished by its highly glaucous, waxy, generally erect stems and leaves, and the generally basal and persistent seven- to nine-lobed leaf blades with pinnate or ternate lobes. It has been confused with S. glaucescens, to which it appears to be closely related and of which it may be found to be a variant or subspecies; as in S. glaucescens, the narrow inflorescence is often slightly curved between flowers. Sidalcea multifida can generally be distinguished from S. glaucescens by its seven- to nine-lobed leaf blades with more finely divided, ternate lobes, persisting basal leaves, range, and more erect habit. It occurs in Alpine, Mono, and Tulare counties in California, and from Lyon to Washoe counties in Nevada.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Sidalcea sparsifolia intergrades with S. malviflora subsp. californica and S. neomexicana. None of the varieties described within S. malviflora subsp. sparsifolia is recognized here but one or more of them may merit distinction. Along with S. neomexicana, S. sparsifolia is one of the southern species of Sidalcea and one of the more tolerant of hot, dry, desert conditions.

Sidalcea sparsifolia is the most common of the southern California species, occurring in the Sierra Nevada foothills and South Coast Ranges. It has been confused with S. neomexicana and with subspecies of S. malviflora. It can be distinguished from the former by its nonpustulate hairs, fibrous crown, and nonfleshy roots, and from the latter by its inland habitat, larger, ascending inflorescences, and tendency to have mostly basal leaves.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 6, p. 345. FNA vol. 6, p. 354.
Parent taxa Malvaceae > subfam. Malvoideae > Sidalcea Malvaceae > subfam. Malvoideae > Sidalcea
Sibling taxa
S. asprella, S. calycosa, S. campestris, S. candida, S. celata, S. covillei, S. cusickii, S. diploscypha, S. elegans, S. gigantea, S. glaucescens, S. hartwegii, S. hendersonii, S. hickmanii, S. hirsuta, S. hirtipes, S. keckii, S. malachroides, S. malviflora, S. nelsoniana, S. neomexicana, S. oregana, S. pedata, S. ranunculacea, S. reptans, S. robusta, S. setosa, S. sparsifolia, S. stipularis, S. virgata
S. asprella, S. calycosa, S. campestris, S. candida, S. celata, S. covillei, S. cusickii, S. diploscypha, S. elegans, S. gigantea, S. glaucescens, S. hartwegii, S. hendersonii, S. hickmanii, S. hirsuta, S. hirtipes, S. keckii, S. malachroides, S. malviflora, S. multifida, S. nelsoniana, S. neomexicana, S. oregana, S. pedata, S. ranunculacea, S. reptans, S. robusta, S. setosa, S. stipularis, S. virgata
Synonyms S. malviflora subsp. sparsifolia, S. malviflora var. hirsuta, S. malviflora var. stellata, S. malviflora var. uliginosa
Name authority Greene: Cybele Columb. 1: 34. (1914) (C. L. Hitchcock) S. R. Hill: Madroño 56: 107. (2009)
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