What’s a dichotomous key?
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- 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
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- Dichotomous Key
- Lamiaceae
- Teucrium
Teucrium
See list of 3 species in this genus-
1a. Leaf blades once or twice pinnately lobed into ± oblong segments; pedicels 4–8 mm long; calyx conspicuously saccate at the base; plants annual, 10–30 cm tall
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1b. Leaf blades merely toothed; pedicels 1–3 mm long; calyx scarcely saccate at the base; plants rhizomatous perennials, (15–) 30–100 cm tall
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2a. Corolla green-yellow, 9–10 mm long; verticillasters with 1 or 2 flowers, collectively forming what appears to be a lax, secund raceme; leaf blades truncate to cordate at the base
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2b. Corolla pink-purple, 11–18 mm long; verticillasters with 3 or more flowers, collectively forming a more crowded, terete raceme; leaf blades cuneate to rounded at the base
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Show photos of: Each photo represents one species in this genus.