What’s a dichotomous key? Get HelpSee list of 5 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: Crow (1978).
1b. Petals 0.75–2.5 (–3) mm long, shorter than to shortly exceeding the sepals [Fig. 567], or the petals absent; upper stem lacking axillary fascicles of leaves
2b. Sepals 5 per flower (rarely some flowers with 4), erect in fruit; plants annual (rarely short-lived perennial in S. maxima), usually without basal rosettes of leaves, at least the sepals and apical portion of pedicels stipitate-glandular (infrequently glabrous throughout in S. decumbens)
3b. Leaf blades somewhat succulent; seeds red-brown or dark brown, reniform to globose, plump, lacking an abaxial groove; capsules globose prior to dehiscence, with relatively thick valves
Show photos of: Each photo represents one species in this genus.