subspecies on Mecardonia acuminata
is only found in the Florida peninsula.
This axilflower is a low growing perennial with square stems branching near the base. Flowers are white with fine pink lines, tubular shaped with five lobes that are united on the lower 2/3 of the tube. The small toothed leaves are oblanceolate (wider near the tip) and less than 2.5cm (~1 in.) long.
Mecardonia acuminata peninsularis
is a Florida endemic subspecies of the Axilflower that is found throughout the southeastern United States and into north and central Florida. This wider ranging axilflower, sometimes considered subspecies acuminata
, has leaves longer than 2.5cm (1 in.) and does not branch near the base. Another subspecies - microphylla
- ranges from Louisiana to Georgia plus two Florida panhandles counties, Washington and Calhoun. The microphylla
subspecies has a peduncle
(flower stalk) less than 10mm (~3/8 in.) long and sepals 2mm (~1/16 in.) or wider, while the others subspecies have peduncles longer than 10mm (~3/8 in.) long and sepals narrower than 2mm (~1/16 in.).