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Vascular Plants of California
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Sida


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.
Sida
Habit: Annual [perennial herb, shrub], [glabrous or] hairy. Leaf: petioled to subsessile; blade generally unlobed (to palmate-lobed), generally dentate. Inflorescence: flowers 1--several in leaf axils; flowering stalks often jointed; bractlets 0. Flower: petals pale- to orange-yellow [white]; stigmas head-like. Fruit: segments generally 5--15, indehiscent, side walls firm, persistent, beaks generally 2, prominent. Seed: 1 per segment, not enclosed by net-veined envelope.
Species In Genus: 150 species: tropics, subtropics, especially America. Etymology: (Greek: used by Theophrastus for other pl, applied to these by Linnaeus) Note: Sida abutifolia Mill. reported as possibly naturalized in California.
Jepson eFlora Author: Steven R. Hill
Reference: Fryxell 1988 Syst Bot Monogr 25:373--412
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)
Key to Sida

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Citation for this treatment: Steven R. Hill 2012, Sida, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=9589, accessed on April 15, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 15, 2024.