Page 7: 546 results for head
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Hieracium flagellare (whip hawkweed)
...flower heads: the flower head has ray flowers only, meaning all of the individual flowers of the flower head have a strap-shaped ray, which may or may not have teeth at the v...
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Ambrosia trifida (giant ragweed)
...Flower head shape: the flower head is cup-shaped (the sides diverge, then curve upwards and become parallel). Flower head number: ...
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Cirsium discolor (field thistle)
...Flower head position: each of the flower heads is separate on its own peduncle (stalk), not clustered in groups. Flower head number: ...
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Eupatorium altissimum (tall thoroughwort)
...flower head base: 1.0 mm–6.0 mm. Flower head position: some or all the flower heads are grouped in clusters of two or more. ...
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Arnoseris minima (lamb-succory)
...Flower head shape: the sides of the flower head are roughly parallel, like a cylinder. Flower head position: each of the fl...
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Coreopsis pubescens (hairy tickseed)
...Flower head shape: the sides of the flower head are roughly parallel, like a cylinder. Ray flowers: 6-10. ...
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Anthemis arvensis (corn chamomile)
...Flower head shape: the sides of the flower head are roughly parallel, like a cylinder. Swelling at base of flower head: NA....
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Solidago squarrosa (squarrose goldenrod)
...Flower head platform surface: NA. Flower head profile: the disk is rounded across the top. Ovary p...
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Artemisia carruthii (Carruth's wormwood)
...flower heads distinctly higher than others. Flower head shape: the sides of the flower head are roughly parallel, like a cylinder. ...
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Crepis setosa (bristly hawk's-beard)
...flower head base: 12.0 NA–16.0 NA. Flower head outer flowers: at the outer edge of the flower head, each flower has a single enla...