Page 24: 350 results for involucre
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Lasthenia minor (coastal goldfields)
... involucre 5–10 mm tall, pappus of 1–7 awns or awn-tipped scales or absent, and leaf blades entire (vs. L. minor, with the involucre 4–6 mm tall, pappus of 2 or 3 narrow-lanceolate to lanc...
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Leontodon hispidus (bristly hawkbit)
...and involucre 6–11 mm tall during anthesis (vs. L. hispidus, with the pappus of inner flowers and outer flowers alike, well-developed, with an inner series of plumose bristles and an outer series of s...
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Antennaria plantaginifolia (plantain-leaved pussytoes)
Antennaria plantaginifolia (L.) Richardson. plantain-leaved pussytoes. Non-Monocots Composites Facts About: Plantain-leaved pussytoes, as the name suggests, has basal leaves that loo...
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Centaurea stoebe (spotted knapweed)
... involucre 18-25 mm wide, the bracts lacking prominent longitudinal veins, and fertile flowers 20-25 mm long (vs. C. stoebe, with the involucre 6-8 mm wide, the bracts with several promine...
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Nigella sativa (black-cumin)
...an involucre composed of a whorl of bracts that are pinnately dissected into filiform segments and ultimate segments of upper leaves linear (vs. N. sativa, with the inflorescence not subtended by an i...
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Euphorbia marginata (mountain snow spurge)
...and involucres glabrous or pubescent (vs. E. marginata, with leaves of the cyathiescence white on the margin or entirely white, those of the stem with broad-ovate to elliptic or obovate-oblong blades ...
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Asperula arvensis (blue woodruff)
...an involucre composed of a whorl of basally connate leaves (vs. A. arvensis, with sepals obsolete and inflorescence subtended by an involucre composed of a whorl of distinct leaves).: Sher...
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Tanacetum parthenium (feverfew tansy)
...long, involucres 12-20 mm in diameter, and capitula borne mostly singly at the tips of stems and branches (vs. T. parthenium, with rays mostly 2-10 mm long, involucres 5-7 mm in diameter, and capitula...
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Coreopsis palmata (stiff tickseed)
Coreopsis palmata Nutt.. stiff tickseed. Non-Monocots Composites Facts About: Stiff tickseed is native to the Great Plains and parts of the Midwest and South, but it is not native to...
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Euphorbia corollata (flowering spurge)
...and involucres pubescent (vs. E. corollata, with leaves of the cyathiescence green, those of the stem with linear to elliptic blades that are obtuse at the apex, and stems and involucres glabrous or p...