| Each floret is in the axil of a chaffy bract and these are arranged spirally or distichously in spikelets. |
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| The tusk of whale or narwhal is spirally curved, and can measure up to 2.5 m in length. |
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| Within 1 hr, the resulting spirally coiled, gelatinous spermatophore has been transferred to the female. |
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| The woolly mammoth has two distinctive spirally curved tusks up to 3.5 metres long. |
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| Pinaceae are Monoecious with small pollen cones and larger seed cones with spirally arranged scales. |
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| The cone axis is not visible, but the sporangial clusters appear to be arranged spirally. |
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| The cupules are simple involucres of bracts which are spirally arranged on the floral axis preceding the flower. |
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| The main axis is polysiphonous and corticate with simple monosiphonous lateral branches arranged spirally around the main axes. |
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| A common arrangement is the positioning of single leaves spirally up the stem, which can sometimes form a striking helical pattern in the shoot apex. |
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| Glumes are spirally or distichously arranged in the spikelets, apart from some reduced species in which the arrangement is obscure. |
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| This is larger than the other, and surrounded by three walls, rising spirally. |
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| The children's slide had a spirally helicine shape I had never seen before. |
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| The leaves grow spirally arranged on long shoots, and in clusters on spur shoots on the branches or twigs. |
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| Like the cycads many cycadeoids have trunklike stems that are unbranched or sparsely branched and clothed in spirally arranged persistent leaf bases. |
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| Secondary or other order axes or branches are cylindrical or flattened in section, with a smooth or 'spiny ' surface, and are distichously or spirally arranged. |
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