Sidalcea

 Malvaceae

©The World Botanical Associates Web Page
Prepared by Richard W. Spjut
Aug 2006, Dec 2013

Sidalcea multifida
Intermediate to S. glaucescens

Tulare Co. near Kern Co. line: Southern Sierra Nevada. Sequoia National Forest: 16 miles west of Hwy. 395 along Kennedy Meadows Road, 2,225 m. Inconspicuous perennial with basal leaves; petals partly lavender, white near base; carpels distinctly honeycombed, sparsely stellate pubescent. Locally common. Richard Spjut & Paul Burchstead 16382, Jun 27, 2008


Sidalcea neomexicana

San Diego Co.,, CA
Near Valley Center, June 200
6

Sidalea ranunculacea

Kern Co., CNPS Chapter field trip, Greenhorn Mts., Rancheria Rd., June 2010

 

Sidalcea oregana

Sidalcea sparsifolia

Kern Co., CNPS Chapter field trip, Greenhorn Mts., Rancheria Rd., June 2010

Sidalcea hickmannii ssp. parishii

California: Kern Co.: northern slopes of Piute Mt. in valley of burned Piute cypress grove, 35.54987, -118.47822 (WGS84), elev. 5,300 ft, occurring with common Turricula parryi, Eriophyllum confertiflorum var. taenacetiflorum, abundant Calystegia longipes, occasional Cercocarpus betuloides.  CNPS Chapter Field Trip, June 1, 2013.  New to Kern County as also the Eriophyllum. Det. by B. W. Keelan, R. Spjut, & C. Golden.

 

 

Trees and Shrubs of Kern County (Dec 2013)

Sidalcea. Annuals, perennial herbs or subshrubs, usually covered with dendritic hairs; leaves simple, alternate and maple-like in outline, shallowly to deeply palmately divided, the basal usually less deeply divided, the upper reduced; flowers in axillary clusters or in linear arrays on terminal scapes, purple, rose, pink or white; petals 5, distinct but collectively bowl-shaped, tapered to a ciliate claw; calyx cupular, divided partly into 5 triangular teeth; stamens united into a columnar tube; gynoecium of 5–9 carpels, schizocarpic, each carpel with1 ovule, in fruit not sharply differentiated by a lower reticulate portion, indehsicent.  ± 25 spp. in arid North America, 24 in California, 8 in Kern Co.

1.      Basal leaf blades fan-shaped, wider than long, shallowly lobed; leaf
stalk (petiole) 0.5–2 cm; flowers crowded together into short
subcylindrical masses on simple to branched scapes
.................................................................... ........... Sidalcea hickmannii ssp. parishii

Basal leaf blades round, deeply divided to near petiole; petioles >2 cm
flowers  loosely aggregated terminally on simple scapes..................................... 2

 

2.      Flower stems mostly bare; flowers 1–2 generally opened on a
stem with as many as 9 flowers................ .............................. Sidalcea multifida

Flower stems leafy; flowers >2 opened on a stem............................................... 3

 

3.      Stems ascending to erect; basal leaves similar to stem
leaves; Southern San Joaquin Valley foothills....... ................ Sidalcea malviflora

Stems creeping along ground to ascending; stem leaves reduced, not
similar to basal leaves; Sierra Nevada................................... Sidalcea glaucescens

 

Sidalcea glaucescens  Greene 1885. Waxy checkerbloom. Perennial herb or subshrub from a woody taproot, sometimes woody and shortly branched above, appearing hemispherical to flat-topped in basal region; basal leaves rounded in outline, all similar, deeply 5 (-7) lobed , the leaf segments generally shallowly 3-lobed, glaucous, sparingly stellate hairy, on petioles 2–10 cm long, blades (1.5-) 2–4 (-7) cm across; flowers Jun–Aug, scattered ± along one side of the flowering stems 20–70 cm high, appearing more clustered near apex, usually one or two opened per stem, bowl-shaped, lavender or rose to purplish, petals with longitudinal white vein-like streaks, merging below into a white basal area, 1.2–1.5 cm; fruiting carpels 6–8, net veined, deeply pitted, somewhat inflated, with scattered minute glandular hairs, shortly beaked, 3–3.5 mm. Meadows in montane coniferous forests, western Nevada and California, Klamath and Cascade Regions south in the Sierra Nevada to near Kern County line where appearing to merge with S. multifida, 3,000 to 11,000 ft.  Type from Summit Station, Donner Pass. Kern Co.: Greenhorn Mountains, 7,000 ft (2,134 m), Cedar Creek Watershed, Boy Scout Camp, CCH (Griffith 407, Jul 1 1937, POM282875) [vicinity of Sunday Peak].  Not recognized in Kern Co (CaFlora). Not in Moe or Twisselmann.

Sidalcea hickmannii Greene 1887 ssp. parishii Robinson 1897. Parish’s checkerbloom. Subshrub from a woody taproot, shortly woody and branched above, herbaceous stems diffuse spreading, basal leaves fan-shaped (flabelliform), ± evenly shallowly lobed or shallowly 6-lobed between slightly deeper incisions, densely stellate hairy, on petioles 0.5–2 cm long, blades 1.5–4.0 cm across; flowers Jun–Aug, in dense short cylindrical clusters on upper stems 40–80 cm  long, usually four or more opened per flower stem, bowl-shaped, pale lavender, petals with longitudinal white vein-like streaks, merging below into a mostly white basal area, 1.1–1.3 cm; fruiting carpels 7–9, bald and shiny, with many raised transverse rugose ridges. Recent burns in woodlands, chaparral, and open conifer forests, California; South Coast Ranges, Western Transverse Ranges, San Bernardino Mts., Piute Mts.,  1,000–2,200 m. Type from western slopes of San Bernardino Mts. Kern Co.: northern slopes of Piute Mt. in valley of burned Piute cypress grove, Piute Bodfish Cypress Botanical Area, 35.54987, -118.47822 (WGS84), 5,300 ft, occurring with Hesperocyparis, Cercocarpus betuloides, Turricula parryi, Eriophyllum confertiflorum var. taenacetiflorum, Calystegia longipes.  CNPS Field Trip, June 1, 2013. Not in Moe or Twisselmann.

Sidalcea malviflora (Sida malvaeflora DeCandolle 1824) A. Gray 1852 subsp. malviflora. Checkerbloom. Perennial with a woody base, flowering stems ascending to 90 cm; basal leaves rounded in outline, deeply digitately divided into 7–9 lobes, the leaf segments generally shallowly 5 to 7-lobed, coarsely stellate hairy, blades 2.0–6 cm across on petioles 2–15 cm; flowers Mar–Jul, on simple scapes, pink to rose with white veins, 1.0–2.5 cm; fruiting carpels net veined, pitted, short beaked, 2.5–4.0 mm. Coastal praires, woodlands and forests below 2,000 ft, Curry Co. Oregon to Baja California. Type from Monterrey, California. Kern Co.: Castac Valley along I-5 N-bound by E shoulder; the Wildlands Conservancy, 16019 Highway 166, Bakersfield.  Two additional records in CCH from near Tejon Ranch and Lebec along I-5. Not in Moe or Twisselmann. Sidalcea sparsifolia (S. malviflora ssp. sparsiflora C. L. Hitchcock 1957 ) S. R. Hill 2009, is a  perennial herb with weak flowering stems, often spreading horizontally; it is widely distributed in Kern County.

Sidalcea multifida  Greene 1914. Cutleaf checkerbloom. Perennial herb or subshrub from a woody taproot, sometimes woody and shortly branched above, appearing hemispherical to flat-topped in leafy basal region, surpassed by occasional sparingly leafy flowering stems 20–60 cm high; basal leaves rounded in outline, deeply digitately divided, similar to some larkspurs, the leaf segments generally shallowly 2 to 7-lobed, glaucous, blades 1.5–4 cm across; flowers May–Jul, scattered ± along one side of the stem, bowl-shaped, lavender or rose to purplish, petals with longitudinal white vein-like streaks, merging below into a mostly white basal area, 1.0–2.5 cm; fruiting carpels 6–7, net veined, pitted, minute glandular hairy, shortly beaked, 3.5–4.0 mm. Dry flats in lodgepole, ponderosa or Jeffrey pine forests, sagebrush scrub, western Nevada and California, Klamath and Cascade Regions south in the Sierra Nevada to near Kern County line where appearing to merge with S. multifida.  Type from foothills near Reno, Nevada. Tulare Co, close to Kern County line, Sequoia NF: 16 mi west of Hwy 395 along Kennedy Meadows Rd; 35º56'43.4", 118º04.33.6", 2,225 m; meadow in ponderosa pine forest in Tulare County; plants mostly herbaceous (Spjut & Burchstead 16382, Jun 27, 2008, HSC, RSA, US). Other specimens cited in CalFlora also near County line. Not in Moe or Twisselmann. or CCH for Kern County.