Commelina

Contains 9 accepted taxa overall.

Characteristics
Commelina L.
DAYFLOWER
Classification
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COMMELINALES
Commelina
Citation
COMMELINA Linnaeus, Sp. Pl. 40. 1753.
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TYPE: Commelina communis Linnaeus Lectotypified by Britton & A. Brown, Ill. Fl. N. U.S., ed. 2. 1: 457. 1913.
Species
Scientific Name Common Name Status Photos
Commelina benghalensis JIO; BENGHAL DAYFLOWER Not Native FACU (NWPL) FACW (DEP)
Commelina caroliniana CAROLINA DAYFLOWER Not Native FAC (NWPL) FACW (DEP)
Commelina communis ASIATIC DAYFLOWER Not Native FAC (NWPL) FACW (DEP)
Commelina diffusa var. diffusa COMMON DAYFLOWER Not Native FACW (NWPL) T (WAP) FACW (DEP)
Commelina diffusa var. gigas CLIMBING DAYFLOWER Not Native FACW (NWPL) FACW (DEP)
Commelina erecta WHITEMOUTH DAYFLOWER Native FACU (NWPL)
Commelina forskaolii RAT'S EAR Not Native FACW (DEP)
Commelina gambiae GAMBIAN DAYFLOWER Not Native FACW (DEP)
Commelina virginica VIRGINIA DAYFLOWER Native FACW (NWPL) FACW (DEP)
[Family identification key]
1.  Margins of spathe free to the base
2
1.  Margins of spathe clearly united in the basal portion
5
2.  Spathes sometimes with whitish or pale green patches with contrasting, dark green veins; lower petal white or paler than others; capsule 2-locular; seeds rugose pitted-reticulate
2.  Spathes without contrasting veins; all petals bluish and concolorous with others; capsule 3-locular; seeds reticulate or smooth to faintly alveolate
3
3.  Spathes not at all to slightly falcate; distal cyme usually vestigial (rarely well developed, 1-flowered); seeds smooth to faintly alveolate
3.  Spathes usually distinctly falcate; distal cyme in larger spathes usually well developed, 1-several-flowered; seeds reticulate
4
4.  Leaf blades 1.5-5(-8) × 0.5-1(-2.2) cm; medial anther connective with broad transverse violet band; capsules 5-seeded (occasionally less, by abortion)
4.  Leaf blades 6-14 × 1-3.3 cm; medial anther connective without dark band; capsules typically 1-2-seeded
5.  Spathe pilose with septate hairs
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5.  Spathe glabrate, scabrid-pubescent, pubescent, puberulent, or pilose
8
6.  Leaf sheaths with reddish hairs at the apex; leaf blades ovate to lanceolate-elliptic
6.  Leaf sheaths lacking reddish hairs; leaf blades linear to oblong-elliptic
7
7.  Spathe not falcate or only slightly, the lower margin nearly straight, acute at the tip; petals blue; seeds smooth
7.  Spathe falcate, the lower margin curved to the acuminate tip; petals peach-colored to very pale orangeish; seeds reticulate
8.  Roots stout, ca. 2 mm thick; leaf sheaths with auricles at summit; lower petal white, less than ½ the size of upper petals; locules all 1-seeded
8.  Roots thin, ca. 1 mm thick; leaf sheaths not auriculate;lower petal blue to lilac or lavender, not or only slightly smaller than upper petals; some locules usually 2-seeded
9
9.  Main stems ascending to decumbent, repent or scrambling; leaf sheaths often red-pilose; leaf blades 1-11 cm long; spathes 0.5--2 cm long, pubescent; subterranean, cleistogamous flowers sometimes present
9.  Main stems erect to ascending; leaf sheaths with red hairs at summit; leaf blades 6--20 cm; spathes 1.5--3.5 cm long, glabrate; subterranean, cleistogamous flowers absent