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Sida ulmifolia
Common Wireweed
Common Fanpetals
Southern Sida
Synonym(s): Sida acuta
Florida native
A common plant of disturbed sites throughout the peninsula and in some north Florida and panhandle counties. The range includes the coastal states from Texas to South Carolina, plus Pennsylvania, New Jersey, Hawaii, Puerto Rico and the Virgin Islands.
A perennial shrub-like herb with erect minute stellate-hairy stems up to 1m (3 ft.) tall. Leaves are lanceolate to ovate, 3-9cm (1-1/8 to 3-1/2 in.) long and 2 to 4 times as long as wide with serrate margins at least near the tip. Stipules are often longer than the petioles which are typically 1/10 the length of the leaf blade. The yellow-white flowers have five petals with the bases united having the appearance of a fan shape. Calyx consists of triangular ribbed lobes 6-8mm (1/4 to 1/3 in.) long and often ciliate. The pedicels are less than 1 cm (~ 3/8") long.
Sida ulmifolia is a member of the Malvaceae - Mallow family.
Atlas of Florida Vascular Plants (Institute for Systemic Botany) profile for this species
USDA Plant Profile for this species
Date record last modified: Sep 25, 2021
