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Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
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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).
266 genera, 4025 species: worldwide, especially warm regions; some cultivated (e.g., Abelmoschus okra; Alcea hollyhock; Gossypium cotton; Hibiscus hibiscus). [Angiosperm Phylogeny Group 1998 Ann Missouri Bot Gard 85:531–553] 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). —Scientific Editors: Steven R. Hill, Thomas J. Rosatti.
Unabridged references: [Alverson et al. 1999 Amer J Bot 86:1474–1486; Bayer et al. 1999 Bot J Linn Soc 129:267–303; Hill 2009 Madroño 56:104–111]
Key to Malvaceae
Annual to shrub, generally taprooted; hairs stellate, simple, or 0. Stem: prostrate to erect, generally not rooting, herbaceous to soft-woody. Leaf: stipules persistent; petioled; blade round to reniform, shallowly to deeply palmate-5–7(9)-lobed or lobes 0, generally crenate to dentate. Inflorescence: raceme-like or generally flowers 1–10 in leaf axils; flowering stalks often jointed above middle; bractlets 3, free or fused ± 1/2. Flower: showy or not; calyx lobes ± = tube; petals ± 0.4–4.5 cm, generally shallowly notched at tip, pink, purple, rose-purple or white, dark-veined or not; anthers generally on upper 1/3–1/2 of filament tube; stigmas linear, on inner side of style branches. Fruit: ± disk-like; segments 6–15, indehiscent, generally edged; walls smooth or ribbed, puberulent or not; beak 0. Seed: firmly enclosed by, not readily separating from fruit wall, reniform, generally glabrous.Key to Malva
± 30–40 species: Europe, especially Mediterranean, Asia, Africa, few Australia, America. (Greek: mallow, tender) Some species reportedly TOXIC to livestock from selenium or nitrate concentration. [Ray 1998 Novon 8:288–295] Incl 3 California species formerly placed in Lavatera (Hill 2009).
Unabridged etymology: (Greek: malache or malos, mallow, tender)
Unabridged references: [Fryxell 1988 Syst Bot Monogr 255–261; 274–279, including Lavatera; Ray 1995 Plant Syst Evol 198:29–53; Ray 1998 Novon 8:288–295]
Unabridged note: Recently treated to include several species of Lavatera based primarily on molecular data (Ray 1995, 1998). Several other widely cultivated species may escape, including Malva alcea L., Malva moschata L.
Annual. Stem: prostrate, decumbent, ascending, to generally erect, 2–8 dm, widely branched, ± stellate-hairy near tips, glabrous below. Leaf: stipules 4–5 mm, 2–3 mm wide; blade 2–8 cm wide, ± round to reniform, 5–7-angled to -lobed, teeth ± rounded. Inflorescence: flowers 2–4 in leaf axils; flowering stalks in fruit generally < calyx; bractlets 1–2 mm, linear to thread-like. Flower: calyx ± 3 mm, much larger in fruit, lobes spreading, widely ovate, net-veined; petals 3–5 mm, ± pink to generally white. Fruit: 6–7 mm diam; segments ± 10–11, glabrous to hairy, wrinkled, net-veined-pitted, ribbed on back, outer edges thin-winged, toothed.
2n=42. Common. Disturbed places; < 2500 m. California Floristic Province, Desert; native to Europe, Mediterranean, India; widespread weed. Mar–May [Online Interchange]
Unabridged note: Sometimes misidentified as Malva rotundifolia L., nom. rej.
Previous taxon: Malva nicaeensis
Next taxon: Malva pseudolavatera
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Mar 11 2014
Citation for this treatment: [Author of taxon treatment] 2012. Malva, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=32604, accessed on Mar 11 2014
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