Page 91: 3,316 results for 2
-
Oenothera: Dichotomous Key
...with 2–6 seeds 1.25–3.5 mm long 2a. Sepals 2–3.5 mm long; petals 1.5–3 mm long; anthers 0.5–1 mm long 2b. Sepals 6–18 mm long; petals 6–15 mm long; anthers 1.5–5 mm long ...
-
Prunus: Dichotomous Key
...6–12 mm long; flowers 20–25 mm in diameter; drupes 20–30 mm in diameter; branches sometimes with thorns 4b. Flowers in fascicles of 3–5; drupes red to yellow; leaves conduplicate in bud;...
-
Lemna: Dichotomous Key
...thalli 2–4 mm long, 1.3–3 times as long as wide, elliptic to lanceolate or obovate, often in clusters of (2–) 4–8 (–10), asymmetrical at the base 2b. Mature thalli with 3 (–5) veins ...
-
Section Phaestoglochin: Dichotomous Key
...1.8–2.6 mm wide; base of flowering stems 1.5–2.2 mm thick 4b. Inflorescence dense, with approximate to crowded spikes; basal internodes of inflorescence less than 2 times as long as the l...
-
Cirsium: Dichotomous Key
... 2a. Involucre 25–40 mm tall; involucral bracts (or most of them) with prominent spine-tips 2–6 mm long; leaf blades adaxially with abundant, appressed spines 2b. Involucre 10–15 ...
-
Epilobium: Dichotomous Key
...10–25 ×3–7 mm, ± entire (rarely very weakly toothed); outer surface of seed smooth; capsules mostly 23–40 mm long; stems mostly 2–10 cm tall; petals pale purple in life, 3–4.5 mm long ...
-
Populus key for mature vegetative material: Dichotomous Key
... 2a. Mature leaf blades of long shoots abaxially tomentose, the margins varying from 3- to 5-lobed or irregularly serrate with coarse teeth 2b. Mature leaf blades abaxially glabro...
-
Vitis: Dichotomous Key
...than 2 successive nodes; berries 5–12 mm thick (to 22 mm thick in V. vinifera); abaxial surface of leaf blades glabrate to sparsely pubescent at maturity, much of the surface of the leaf blade ...
-
Abies concolor (white fir)
... 2- to 3-year-old branches with a prominent groove (vs. A. concolor, with 2- to 3-year-old branches lacking a prominent groove).: Abies homolepis leaves 12...
-
Larix laricina (American larch)
...cones 2–3.5 cm long, with 40–50 scales (vs. L. laricina, with branchlets spreading, bark of main stem shedding as small, irregular scales, and seed cones 1–2 cm long, with mostly 10–15 scales).: ...