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Sidalcea celata
REDDING CHECKERBLOOM

Higher Taxonomy
Family: MalvaceaeView DescriptionDichotomous Key

Common Name: MALLOW FAMILY
Habit: Annual to tree; generally with stellate hairs, often with bristles or peltate scales; juice generally mucilage-like; bark fibrous. Leaf: generally cauline, alternate, petioled, simple [palmate-compound], generally palmate-lobed and/or veined, generally toothed, evergreen or not; stipules persistent or not. Inflorescence: head, spike, raceme, or panicle, in panicle or not (a compound panicle), or flowers >= 1 in leaf axils, or flowers generally 1 opposite a leaf or on a spur; bracts leaf-like or not; bractlets 0 or on flowering stalks, often closely subtending calyx, generally in involucel. Flower: generally bisexual, radial; sepals 5, generally fused at base, abutting in bud, larger in fruit or not, nectaries as tufts of glandular hairs at base; petals (0)5, free from each other but generally fused at base to, falling with filament tube, clawed or not; stamens 5--many, filaments fused for most of length into tube around style, staminodes 5, alternate stamens, or generally 0; pistil 1, ovary superior, stalked or generally not, chambers generally >= 5, styles or style branches, stigmas generally 1 or 1--2 × chamber number. Fruit: loculicidal capsule, [berry], or 5--many, disk- or wedge-shaped segments (= mericarps).
Genera In Family: 266 genera, 4025 species: worldwide, especially warm regions; some cultivated (e.g., Abelmoschus okra; Alcea hollyhock; Gossypium cotton; Hibiscus hibiscus). Note: Recently treated to include Bombacaceae, Sterculiaceae, Tiliaceae. Mature fruit needed for identification; "outer edges" are surfaces between sides and back (abaxial surface) of segment. "Flower stalk" used instead of "pedicel," "peduncle," especially where both needed (i.e., when flowers both 1 in leaf axils and otherwise).
eFlora Treatment Author: Steven R. Hill, except as noted
Scientific Editor: Steven R. Hill, Thomas J. Rosatti.
Genus: SidalceaView DescriptionDichotomous Key

Common Name: CHECKERBLOOM
Habit: Annual, perennial herb; with taproot, clustered fleshy roots, caudex, adventitious roots, or occasionally shallow rhizome. Stem: +- decumbent or generally erect, some occasionally stolon-like; erect stem, branches terminating in inflorescence. Leaf: generally fewer above, occasionally +- rosetted; petioles below generally >> petioles above; blades below generally crenate to shallowly lobed, blades above often deeply palmate-lobed or -divided; stipules generally persistent. Inflorescence: head, spike, or raceme, in panicle or not, generally more open in fruit; bracts 2, generally stipule-like, occasionally involucre-like, united at base to +- entirely; bractlets 0(3), generally not in involucel. Flower: flowers generally bisexual, protandrous, occasionally functionally unisexual (occasionally, plants with either bisexual or pistillate flowers in a given sp.); calyx lobes >= tube; petals spreading or erect, purple or rose-pink to white, generally with some pale veins, base generally also paler than tips (occasionally darker), tip +- notched or fringed, petals on pistillate flowers shorter, darker, often <= 10 mm; filament tube generally stellate-puberulent, anthers near top, in generally 2 concentric series, generally pink, +- purple, or white; stigmas linear, on inner side of style branches, conspicuous in pistillate flowers. Fruit: segments generally 5--10, indehiscent, puberulent, glandular, or glabrous, beaked or not, side walls generally +- thin. Seed: 1, generally filling chamber, reniform, glabrous.
Species In Genus: +- 27 species: western North America: Alaska, Canada, to Mexico. Etymology: (Greek: combination of Sida, Alcea, 2 other names for mallows) Note: Some species highly variable, especially in leaves, growth stage; mature plants with fruit minimize considerable problems in identification, as does knowledge of plant base, underground parts; needs study.
Unabridged Note: This treatment differs from that in TJM (1993) in addition of new taxa and in segregation as species of former, primarily inland subspecies of Sidalcea malviflora, now primarily a coastal entity.

Sidalcea celata (Jeps.) S.R. Hill
NATIVE
Habit: Plant 4--8(10) dm, caudex present or 0, rhizomes 0. Stem: generally erect, occasionally in age glaucous, base with bristles (or stellate hairs). Leaf: petiole 15--18 cm; basal generally crenate to shallowly 7-lobed, upper few, smaller, 5-lobed, lobes +- 3.5 cm, 4 mm wide, +- entire; hairs +- 1.5 mm adaxially, stellate, 6-rayed, 1.5 mm abaxially; stipules +- 3 mm, generally deciduous. Inflorescence: open, generally branched, elongate, +- 1-sided, (5)10--12(23)-flowered; axis sparsely stellate-puberulent; bracts +- 3 mm, < flowering stalks, calyx, puberulent, deciduous. Flower: calyx (7)9--12 mm, +- uniformly densely stellate-puberulent, generally 7-nerved, lobes 6--8(9) mm, 3--6 mm wide, abruptly acute (acuminate); petals pale pink-lavender, in bisexual flowers 2--2.5(3.1) cm, in pistillate generally 1--2 cm; filament tube generally 8--10 mm. Fruit: segments +- 7, 3--4 mm, minutely glandular-puberulent especially in youth, net-veined, sides, back deeply pitted, honeycombed, outer edges occasionally sharp, beak +- 1 mm. Chromosomes: 2n=60.
Ecology: Open oak woodland, serpentine or not; Elevation: 150--370 m. Bioregional Distribution: NCoRI (Shasta, Tehama cos.), CaR, n ScV. Flowering Time: May--Jun
Synonyms: Sidalcea malviflora (DC.) A. Gray subsp. celata (Jeps.) C.L. Hitchc.; Sidalcea malviflora var. celata Jeps.
Unabridged Note: Confused with Sidalcea asprella, Sidalcea gigantea, others; needs study.
eFlora Treatment Author: Steven R. Hill
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Citation for this treatment: Steven R. Hill 2016. Sidalcea celata, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=91700, accessed on December 09, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on December 09, 2016.


Geographic subdivisions for Sidalcea celata:
NCoRI (Shasta, Tehama cos.), CaR, n ScV.
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.