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FNA | Family List | FNA Vol. 6 | Malvaceae | Malvaviscus

1b. Malvaviscus arboreus Cavanilles var. drummondii (Torrey & A. Gray) Schery, Ann. Missouri Bot. Gard. 29: 215. 1942.

Texas mallow, Turk’s-cap, Drummond waxmallow Texas mallow, Turk’s-cap, Drummond waxmallow

Malvaviscus drummondii Torrey & A. Gray, Fl. N. Amer. 1: 230. 1838; Pavonia drummondii Torrey & A. Gray

Plants clone-forming, 0.5–1.5(–3) m, softly hairy. Stems glabrous proximally, densely and minutely tomentose distally. Leaf blades deeply 3-lobed, broadly ovate, 4–9 × 4–12 cm, at least as long as wide, base usually strongly cordate, margins crenate-dentate, apex obtuse (acute). Petals 1.5–3.5 cm. 2n = 28.

Flowering summer–fall. Limestone slopes and ledges, wooded arroyos, along streams in shaded areas; 0–200 m; Ala., Ark., Fla., Ga., La., Miss., Tex.; Mexico (Coahuila, Tamaulipas).

It is questionable whether var. drummondii is native to states east of Texas. The remarkably uniform populations that grow in central Texas suggest that the variety is native there. The taxon apparently was, early on, taken into cultivation in coastal southeastern United States, where it has escaped and persisted. Variety drummondii is also grown in California, North Carolina, and South Carolina but has not naturalized.


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