Page 76: 891 results for free
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Symphyotrichum prenanthoides (crooked-stemmed American-aster)
...more free-standing stems. Bract tip extension appearance: NA. Bract tip color: the tips are a diff...
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Lythrum salicaria (purple loosestrife)
...has free-central placentation, where the ovules develop on a central column in a compound ovary lacking septa or with septa at the base only. Leaf blade base: ...
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Nabalus serpentarius (lion's-foot rattlesnake-root)
...more free-standing stems. Leaf blade hairs: NA. Bract cycle number: there is one main cycle of bra...
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Bidens frondosa (Devil's beggar-ticks)
...more free-standing stems. Final leaf segment length (compound lvs only): 15.0 mm–120.0 mm. Flower head number: ...
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Polymnia canadensis (white-flowered leaf-cup)
...more free-standing stems. Disk flower lobe number: 5. Specific leaf type: the leaf has a row of tw...
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Pseudognaphalium obtusifolium (blunt-leaved rabbit-tobacco)
...more free-standing stems. Ovary surface: the ovary surface is textured with tiny points, bumps or wrinkles. Leaf blade flatn...
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Pseudognaphalium micradenium (Weatherby's rabbit-tobacco)
...more free-standing stems. Ovary profile: in profile, the ovary is oblong (roughly rectangular but rounded at the ends). Leaf...
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Doronicum pardalianches (greater false leopard's bane)
...more free-standing stems. Flower head number: each flowering stem has four or more flower heads on it. Spines on plant: ...
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Eutrochium purpureum (purple Joe-Pye weed)
...more free-standing stems. Bract cycle number: there are three or more cycles of bracts. Seed hair tuft tips: ...
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Group 1: Lycophytes, Monilophytes: Dichotomous Key
...Plants free-floating, with simple leaves 4a. Floating leaf blades mostly 5–15 mm long, with abundant and conspicuous branched hairs on the upper surface 4b. Floating leaf bla...