Page 27: 989 results for opposite
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Apocynaceae: Dichotomous Key
...Leaves opposite; petals white, tinged or striped with pink, green-white, or yellow; seeds comose
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Dichotomous Key to Families
...leaves opposite or whorled) 5b. Each node with 1 leaf or leaf scar (i.e., leaves alternate; subopposite at some nodes in some Rhamnus and in Salix purpurea) 4b...
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Hydrocharitaceae: Dichotomous Key
...Leaves opposite; flowers without a perianth; androecium with 1 stamen; gynoecium composed of a single, unilocular, unicarpellate ovary; fruit an achene 1b. Leaves whorled (at least in par...
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Lythraceae: Dichotomous Key
...are opposite and finely dissected and floating ones that are alternate, borne in a crowded rosette, and have rhombic blades borne on inflated petioles [Fig. 717]; fruit indehiscent, caltrop-shaped, wi...
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Rubiaceae: Dichotomous Key
...(i.e., opposite) [Figs. 882, 883]; fruit fleshy or dehiscent; corolla pubescent on the adaxial (i.e., inside) surface (glabrous in Houstonia caerulea) 3a. Flowers united by their h...
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Asteraceae Group 2: Dichotomous Key
...Leaves opposite or whorled (those of the upper stem sometimes alternate) [Fig. 433] 19a. Plants vines; involucre with 4 principal bracts 19b. Plants herbs; involucre with mor...
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Asteraceae Group 3: Dichotomous Key
...or opposite; capitula usually more than one in the axils of leaves, at the tips of branches, and/or at the summit of the stem; terrestrial plants 18a. Leaves opposite 19a. Pl...
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Swida: Dichotomous Key
...Leaves opposite, ± evenly spaced along the twig; petioles 3–15 (–25) mm long; endocarp not pitted; branchlets without above-mentioned fungal infection 2a. Drupes black or green at maturit...
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Sedum: Dichotomous Key
...frequently opposite [Fig. 599], the blades relatively flat 3a. Petals yellow; flowers mostly 5-merous; leaf blades elliptic-oblanceolate to oblong-lanceolate or narrow-ovate ...
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Bartonia: Dichotomous Key
...with opposite leaves [Fig. 664], the nodes becoming progressively more crowded near the base 1b. Stigmas 0.8–1.5 mm long at maturity; petals lanceolate to oblong-lanceolate, acute at the ...