Hemerocallis fulva
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| Hemerocallis fulva | ||||||||||||||
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 Flower of Hemerocallis fulva var. fulva
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| Hemerocallis fulva (L.) L. |
Hemerocallis fulva (Orange Daylily, Tawny Daylily, Tiger Daylily, or Ditch Daylily) is a species of Hemerocallis, native to Asia from the Caucasus east through the Himalaya to China, Japan, Korea, and southeastern Russia.[1][2][3]
It is a herbaceous perennial plant growing from a fleshy rhizome with stems 40–150 cm tall. The leaves are linear, 50–90 cm long and 1–2.8 cm broad. The flowers are 5–12 cm across, orange-red, with a pale central line; they are produced from early summer to late autumn on spikes of 10–20, with the individual flowers opening successively, each one only lasting one day. The fruit is a three-valved capsule 2–2.5 cm long and 1.2–1.5 cm broad which splits open at maturity to release the seeds.[1][3]
Several cultivars are known, including 'Kwanzo', where the stamens are modified into additional petals.[1] 'Kwanzo' is the only known triploid daylily and cannot set seed.[citation needed] It reproduces only by stolons and division. The species H. fulva is diploid, as nearly all daylilies were until tetraploid hybrids began to be produced for their sturdiness in the late 1990s.[citation needed]
Daylilies have escaped gardens across most of the United States and Canada, and are considered an Invasive_species.[4]
[edit] References
- ^ a b c Flora of China: Hemerocallis fulva
- ^ Germplasm Resources Information Network: Hemerocallis fulva
- ^ a b Huxley, A., ed. (1992). New RHS Dictionary of Gardening. Macmillan ISBN 0-333-47494-5.
- ^ USDA Plants Profile for Hemerocallis fulva (orange daylily)
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 'Kwanzo'- a triple-flowered triploid cultivar |
