What’s a dichotomous key?
Help
- 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
- You are here:
- Dichotomous Key
- Apocynaceae
- Vinca
Vinca
See list of 3 species in this genus-
1a. Leaf blades ovate to triangular-ovate, 3–7 cm long, ciliate; calyx lobes 6–12 (–15) mm long, ciliate; corolla with a connate tube 12–20 mm long expanding distally to a limb 35–50 mm wide in life
-
1b. Leaf blades oblong or lanceolate to narrow-elliptic or ovate, 1.5–5 cm long, eciliate; calyx lobes 2–3 (–4) mm long, eciliate; corolla with a connate tube 8–12 mm long expanding distally to a limb 20–30 mm wide in life
-
2a. Leaf blades smooth, coriaceous, the larger ones 15–23 mm wide; flowering stems erect from creeping horizontal stems; peduncles 11–22 (–28) mm long
-
2b. Leaf blades scabrous, subherbaceous, the larger ones 7–16 mm wide; flowering stems erect or arching; peduncles 20–40 mm long
-
Show photos of: Each photo represents one species in this genus.