All Floras      Advanced Search
FNA Vol. 22 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 22 | Commelinaceae | Commelina

4b. Commelina diffusa var. gigas (Small) Faden, Annals of the Missouri Botanical Garden. 80: 213. 1993.

Commelina gigas Small, Man. S.E. Fl., 264. 1933

Herbs, perennial, robust, spreading, sometimes scrambling in shrubs. Leaves: blade narrowly lanceolate to lanceolate-elliptic, 6--14 ´ 1--3.3 cm, apex acuminate. Inflorescences: distal cyme usually exserted, 1--3-flowered; proximal cyme 2--5-flowered; spathes pedunculate, falcate, 2.3--4 ´ 0.5--1.1 cm, apex acuminate; peduncles 1--2(--4) cm. Flowers blue; medial stamen anther connective without dark band. Capsules 3-locular, 2-valved. Seeds typically only 1--2 developing, dark brown, 2.1--2.8 mm, deeply reticulate. 2n = 90.

Flowering spring--fall (perhaps all year round). Hammocks, streamsides, ditches, cypress swamps, wet woods, and lake shores; introduced; Fla.; Asia.

Commelina diffusa is a very variable species throughout its vast range. I have not been able to match C. diffusa var. gigas with specific herbarium specimens from elsewhere. It probably arrived as an introduction instead of arising from diploid C. diffusa through in situ autopolyploidy.


Austin, D. F. 1985. Commelina gigas rediscovered and lost. Palmetto 5(4): 11.


Related Objects  
  • Distribution Map
  • Map

     |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |