Callirhoë triangulata

(Leavenworth) A. Gray

Mem. Amer. Acad. Arts, n. s. 4: 16. 1849.

Common names: Clustered or purple poppy mallow sand poppy triangular-leaf mallow
Basionym: Malva triangulata Leavenworth Amer. J. Sci. Arts 7: 62. 1824
Treatment appears in FNA Volume 6. Treatment on page 245. Mentioned on page 240.

Plants perennial. Stems 1–11(–35), decumbent, ascending, or weakly erect, 4.5–5 dm, densely hairy, hairs stellate, 4(–6)-rayed. Leaves: stipules persistent, ovate to lanceolate, 3.7–7.2 mm; petiole 0.5–29(–34.5) cm; blade triangular or ovate-lanceolate, unlobed or shallowly 3- or 5-lobed, (3–)6–15(–20) × 3.3–10.5(–14) cm, surfaces stellate-hairy. Inflorescences paniculate; involucellar bractlets 3, spatulate or obovate, 3–8 × 1.5–3 mm. Flowers bisexual; calyx lobes valvate in bud, forming apiculate or acuminate point; petals red (each with white basal spot), 1.6–3.2(–3.5) cm. Schizocarps 6–7 mm diam.; mericarps 10–13, 2–4 × 2–3 mm, hairy, hairs simple and 2-rayed, dehiscent; beaks not prominent, to 0.5 mm or absent; collars absent. 2n = 30.

Phenology: Flowering spring–summer.
Habitat: Sand prairies, sand hills, sandy alluvium near streams
Elevation: 100–300 m


V6 441-distribution-map.jpg

Ala., Fla., Ga., Ill., Ind., Iowa, Miss., Mo., N.C., S.C., Wis.


Callirhoë triangulata is found in the upper Mississippi River drainage, especially along the Illinois, Kankakee, Mississippi, Wabash, and Wisconsin rivers. It is also scattered and uncommon in the Gulf and Atlantic coastal plains.

Selected References


Lower Taxa

... more about "Callirhoë triangulata"
Laurence J. Dorr +
(Leavenworth) A. Gray +
Malva triangulata +
Clustered or purple poppy mallow +, sand poppy +  and triangular-leaf mallow +
Ala. +, Fla. +, Ga. +, Ill. +, Ind. +, Iowa +, Miss. +, Mo. +, N.C. +, S.C. +  and Wis. +
100–300 m +
Sand prairies, sand hills, sandy alluvium near streams +
Flowering spring–summer. +
Mem. Amer. Acad. Arts, n. s. +
Callirhoë triangulata +
Callirhoë +
species +