What’s a dichotomous key? Get HelpSee list of 2 species in this genus
- Group 1Lycophytes, Monilophytes
- Group 2Gymnosperms
- Group 3Monocots
- Group 4Woody angiosperms with opposite or whorled leaves
- Group 5Woody angiosperms with alternate leaves
- Group 6Herbaceous angiosperms with inferior ovaries
- Group 7Herbaceous angiosperms with superior ovaries and zygomorphic flowers
- Group 8Herbaceous angiosperms with superior ovaries, actinomorphic flowers, and 2 or more distinct carpels
- Group 9Herbaceous angiosperms with superior ovaries, actinomorphic flowers, connate petals, and a solitary carpel or 2 or more connate carpels
- Group 10Herbaceous angiosperms with superior ovaries, actinomorphic flowers, distinct petals or the petals lacking, and 2 or more connate carpels
Reference: Nesom (2006b).
1a. Stem leaf blades obovate-spatulate, loosely tomentose to glabrate abaxially, weakly bicolored (i.e., adaxial and abaxial surfaces of nearly same color); hairs on adaxial surface of leaf blades slender at base; capitulescence usually interrupted; outer involucral bracts acuminate-apiculate at apex; inner involucral bracts 3–3.5 mm long, not apiculate; receptacles deeply concave
1b. Stem leaf blades usually oblanceolate, closely tomentose abaxially, strongly bicolored; hairs on adaxial surface of leaf blades expanded at base; capitulescence usually continuous; outer involucral bracts acute at apex; inner involucral bracts (3.5–) 4–5 mm long, usually with a minute apiculus; receptacles shallowly concave
Show photos of: Each photo represents one species in this genus.