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texasfan

Habit Plants 1–1.5 m. Stems distichously branched, stellate-hairy, hairs ferruginous, 1 mm diam.
Leaves

stipules equaling or exceeding petioles;

petiole 1–3(–5) mm;

blade discolorous, 2–5(–8) cm, apex acute, surfaces densely stellate-hairy abaxially, sparsely hairy adaxially, hairs simple.

Pedicels

capillary, often equaling or exceeding subtending leaves.

Flowers

buds nodding;

calyx 3–4 mm, rounded basally, surfaces ferruginous stellate-hairy;

petals 4–6 mm, glabrous throughout (including claw);

staminal column purplish, 2–2.5 mm, apically antheriferous;

anthers yellowish;

styles purple, glabrous.

Seeds

1.7 mm, subglabrous.

Schizocarps

5 mm diam.;

mericarps 2.5 mm.

2n

= 16.

Meximalva filipes

Phenology Flowering spring–summer.
Habitat Arid shrublands
Elevation 50–500 m (200–1600 ft)
Distribution
from FNA
TX; Mexico (Coahuila, Nuevo León, San Luis Potosí, Tamaulipas)
[BONAP county map]
Discussion

Meximalva filipes is very reminiscent of the widespread Sidastrum paniculatum, differing from that primarily by its solitary, axillary flowers each subtended by a reduced leaf and its non-reflexed petals. In the flora area, it is known from scattered areas of central, southern, and southwestern Texas.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 6, p. 303.
Parent taxa Malvaceae > subfam. Malvoideae > Meximalva
Synonyms Sida filipes
Name authority (A. Gray) Fryxell: Bol. Soc. Bot. México 35: 32. (1976)
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