Aristolochia californica Torr.

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Article from Bean's Trees and Shrubs Hardy in the British Isles



Calyx and corolla. Term used especially when petals and sepals are not easily distinguished from each other.
(pl. apices) Tip. apical At the apex.
Reduced leaf often subtending flower or inflorescence.
Egg-shaped; broadest towards the stem.


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Article from Bean's Trees and Shrubs Hardy in the British Isles

A vigorous, deciduous climber, with twining, downy stems, 10 ft or more high. Leaves heart-shaped, rounded or blunt-pointed at the apex, 3 to 8 in. long, nearly as wide; downy on both sides; stalk downy, 1 to 2 in. long. Flowers solitary on slender, downy stalks 1 in. long, with a tiny ovate bract at mid-length. Perianth tubular, inflated, about 2 in. long, bent double, about 34 in. wide at the bend; downy, slightly contracted at the mouth, where are three slightly expanding lobes, dull purple.

Native of California; introduced to Kew in 1877 by Sir Joseph Hooker, who had collected it at Chico. In foliage it is similar to A. tomentosa, the leaves remaining downy until they fall, but not so markedly so. The flower, too, is less downy, larger, broader, and more inflated. A. macrophylla differs from both in its smooth flowers, with a large bract on the stalk.


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