Hemerocallis is a very difficult genus taxonomically, with no overall concensus amongst botanists as to how many distinct species there are and the delineation between them. The genus as a whole needs a comprehensive revision. We are trying to follow the most recent thinking for each species, though it is inevitable that a number of species we have included in the genus will have to be amended as and when a comprehensive new treatment is published.
Hemerocallis micrantha Nakai
Hemerocallis hongdoensis M.G.Chung & S.S.Kang
Hemerocallis taeanensis S.S.Kang & M.G.Chung
Hemerocallis hakunensis is a herbaceous perennial plant producing a cluster of growth 40 - 100cm tall, with flowering stems up to 140cm. The roots are usually tuberous, around 15 - 20mm long, 8mm wide.
The plant is harvested from the wild for local use as a food, medicine and source of materials.
Large quantities of the leaves are said to be hallucinogenic. Blanching the leaves removes this hallucinatory component[
]. (This report does not make clear what it means by blanching, it could be excluding light from the growing shoots or immersing in boiling water[
E. Asia - southern Korea, southern Japan.
Commonly found on humus-rich or granitic soils and open areas or under pine-oak forests on hillsides
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Succeeds in most soils[
], including dry ones, preferring a rich moist soil and a sunny position but tolerating partial shade. Plants flower less freely in a shady position though the flowers can last longer in such a position[
]. Grows well in heavy clay soils. Succeeds in short grass if the soil is moist[
]. Prefers a pH between 6 and 7[
The hardiness of this species is uncertain[
Hybridizes freely with other members of this genus[
]. This species is closely related to H. middendorffii esculenta[
Individual flowers are short-lived but the plant produces a succession of blooms[
Plants take a year or two to become established after being moved[
Plants seem to be immune to the predations of rabbits[
The plants are very susceptible to slug and snail damage, the young growth in spring is especially at risk[
Leaves and young shoots - cooked[
]. They must be consumed when very young or else they become fibrous[
Flowers and flower buds - raw or cooked[
]. The flower buds contain about 43mg vitamin C per 100g, 983 IU vitamin A and 3.1% protein[
If the roots are swollen they can be eaten raw or cooked.
The juice of the roots is an effective antidote in cases of arsenic poisoning[
A tea made from the boiled roots is used as a diuretic[
The tough dried foliage is plaited into cord and used for making footwear[
Seed - sow in the middle of spring in a greenhouse. Germination is usually fairly rapid and good. Prick out the seedlings into individual pots when they are large enough to handle. Grow the plants on for their first winter in a greenhouse and plant out in late spring[
Division in spring or after flowering in late summer or autumn[
]. Division is very quick and easy, succeeding at almost any time of the year[
]. Larger clumps can be replanted direct into their permanent positions, though it is best to pot up smaller clumps and grow them on in a cold frame until they are rooting well. Plant them out in the spring.