Literature for Bidens campylotheca subsp. pentamera
Wagner et al., 1990, 1999. Literature for Bidens campylotheca subsp. waihoiensis Wagner et al., 1990, 1999. Literature for Bidens campylotheca Wagner et al., 1990, 1999. Literature for Bidens campylotheca subsp. campylotheca Wagner et al., 1990, 1999. |
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Asteraceae -- The Sunflower Family | Bibliography |
Bidens campylotheca |
General Information | |
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Distribution | |
Habit |
Erect, suffrutescent perennial herbs 0.7-4 m tall, with sprawling horizontal lateral branches. |
Leaves |
Leaves pinnately compound and bipinnatifid or tripinnatifid, or bipinnately compound, usually 7-29 cm long including petiole, leaflets or pinnae 3-9 or bipinnate, ovate-lanceolate, lanceolate, or divided into nearly linear segments, usually 3-16 cm long, 0.4-8 cm wide, glabrous to tomentose, serrate to pinnately lobed. |
Flowers |
Heads (3-)5-20 in diffuse panicles or compound cymes terminating lateral branches only, 2.5-3.5 cm in diameter including ray florets, peduncles widely divergent, (2-)3-19 cm long, glabrous or sparsely pubescent; outer involucral bracts 4-10 mm long, the inner ones distinct; ray florets (5)6(-8) per head, sterile, rays yellow, 9-17 mm long, 4-6 mm wide; disk florets 25-45 per head, perfect, often divergent so that heads have a loose, globose appearance, corollas yellow; pappus of (1)2(3) awns 1-3 mm long or absent. |
Fruit |
Achenes brownish black, straight to curved, irregularly twisted, or coiled, wingless or with narrow undulate wings, 7-17 mm long, 1.2-2 mm wide, glabrous or setose on margins. |