Data mode


Sign up

No key was found for the requested taxon, but it is the only child of Tradescantia. Showing where it is keyed below.

Click the number at the start of a key lead to highlight both that lead and its corresponding lead. Click again to show only the two highlighted leads. Click a third time to return to the full key with the selected leads still highlighted.

Key to Commelinaceae

Copy permalink to share

1 Spathes absent; inflorescence open and repeatedly branched; [tribe Tradescantieae]
1 Spathes present, single or paired; inflorescence compact, unbranched.
..2 Spathes paired, terminating the stem, resembling foliage leaves in size, shape, texture, and coloration; [tribe Tradescantieae]
..2 Spathes single (or paired in Callisia), either terminal or axillary, differing from the foliage leaves (in Commelina folded, heart-shaped when spread, and usually pale-green, in Cuthbertia and Murdannia scale-like, scarious, and inconspicuous, sometimes hidden by foliage leaves in Murdannia).
....3 Spathe folded, heart-shaped when unfolded, usually pale-green, closely subtending and surrounding the flower pedicels; petals unequal, the 2 upper petals larger and usually more deeply colored than the lower petal (which is sometimes absent); [tribe Commelineae]
......4 Leaves not glaucous; spathe folded; fertile stamens 3, their filaments glabrous; [collectively widespread in our region]
......4 Leaves glaucous; spathe open; fertile stamens 6 (though of 4 disparate forms), their filaments bearded with purple or purple-and-yellow hairs; [TX only in our region]
....3 Spathe scale-like, scarious, and inconspicuous, not closely subtending and surrounding the flower pedicels; petals equal, in both size and coloration.
........5 Leaves linear, > 20× as long as wide; petals bright pink (rarely white); [tribe Tradescantieae]
........5 Leaves lanceolate, < 20× as long as wide; petals white, pink, purplish, or bluish.
..........6 Fertile stamens 3, alternating with 3 staminodia; petals pink to purplish or bluish; [tribe Commelineae]
..........6 Fertile stamens 0-6, all fertile (no staminodes); petals white to pink; [tribe Tradescantieae]
Cite as...