Table 1.

Spikelet structure and sex in three south Florida populations of sawgrass Cladium jamaicense

Population	Spikelet length (mm)	Number of bracts	Number of flowers	% Spikelets F1 M; F2 H	N (n)‡
Henington Pond	5·3 ± 0·4	5–9	2	100	10 (30)
Singeltary	4·9 ± 0·4	5–9	2	93*	10 (30)
NE Everglades	5·4 ± 0·4	5–9	2	40†	10 (30)
Total	5·2 ± 0·4	5–9	2	78	30 (90)

F1 and F2 are the first and second flowers to mature in the spikelet. M, Male flower; H, hermaphroditic flower.

* Alternative sex was F1 M; F2 M; spikelet sex varied within a plant.

^† Alternative sex was F1 H; F2 H; spikelet sex was constant within a plant.

^‡N, Number of plants sampled; (n), number of spikelets sampled (three per plant).