Pavonia lasiopetala
Pavonia
rock rose, rose pavonia, Texas rockrose, Texas swampmallow, Wright's pavonia
swampmallow
usually erect [prostrate], often stellate-hairy, sometimes glabrate, not [sometimes] viscid.
stipules subulate, 2–5 mm;
petiole 1/2–1 times length of blade;
blade slightly discolorous, ovate, 2–5 cm, slightly longer than wide, base cordate, margins coarsely dentate, apex acute, surfaces stellate-hairy.
stipules usually persistent (early-deciduous in P. paludicola), subulate to filiform;
blade usually symmetric, ovate-triangular to hastate-oblong or ovate, not [sometimes] dissected or parted, base truncate to cordate, margins dentate or crenate to subentire.
axillary solitary flowers.
terminal racemes [panicles, capitula], or axillary solitary flowers;
involucel present, bractlets persistent, [4–]5–8[–18+], distinct.
2–5 cm, usually subequal to petiole;
involucellar bractlets 5, alternate with calyx lobes, usually linear-lanceolate, 1–2 mm wide, shorter than to subequal to calyx, hirsute.
calyx 9–12 mm, hirsute, lobes prominently 3–5-veined;
corolla rotate, petals lavender to pink, not auriculate, 15–25 mm;
staminal column usually declinate resulting in somewhat bilateral flower, with 5 apical teeth, glabrous;
stigmas included, usually villous.
calyx persistent, not splitting symmetrically, not spathaceous, not or scarcely accrescent, not inflated [somewhat inflated], lobes ribbed or unribbed, usually lanceolate-ovate;
corolla rotate to tubular, lavender to pink or yellow [white, purple], petal bases auriculate or not;
staminal column usually included [exserted];
style 10-branched, (2 per carpel);
stigmas 10, capitate.
schizocarps, usually erect, not inflated, not angled, often oblate, dry, [sometimes] indurate, minutely hairy or glabrous;
mericarps 5, 1-celled, unornamented [sometimes winged], with spines, or otherwise ornamented, usually indehiscent.
tufted on hilum.
1 per mericarp, glabrous or hairy.
pallid, 8–9 mm diam., subglabrous;
mericarps pale brown, without spines, obscurely carinate dorsally, otherwise smoothly rounded, 3.5–4 mm.
= 14.
Pavonia lasiopetala
Pavonia
Pavonia lasiopetala has become a popular cultivated plant in Texas, where it is also native. It is also used as a component in seed mixtures for ranges and pastures.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Of the many species of Pavonia, more than 160 are South American; the genus is also well represented in Africa. The South American P. multiflora A. St.-Hilaire has been introduced to California gardens as an ornamental shrub; it is self-sterile and not known to have become naturalized.
Species ca. 250 (4 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Leaf blades broadly ovate, margins obscurely dentate to subentire; inflorescences terminal racemes; petals pale yellow or yellow-green, 12–18 mm; stream banks and brackish estuaries. | P. paludicola |
1. Leaf blades ovate to hastate, margins crenate or dentate; inflorescences axillary solitary flowers; petals yellow or lavender to pink, 15–25 mm; habitats away from coast | → 2 |
2. Petals yellow; mericarps 3-spined, spines 6–7 mm, retrorsely barbed. | P. spinifex |
2. Petals lavender to pink; mericarps without spines | → 3 |
3. Leaf blades ovate-triangular to hastate-oblong, petioles to 1/3 length of blades; calyces 6–8 mm; fruits 6 mm diam. | P. hastata |
3. Leaf blades ovate, petioles 1/2–1 times length of blades; calyces 9–12 mm; fruits 8–9 mm diam. | P. lasiopetala |
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