Trifolium flavulum Greene
Trifolium furcatum Hook. & Arn.
Trifolium gambelii Nutt.
Trifolium physopetalum Fisch. & C.A.Mey.
Trifolium virescens Greene
Common Name: Sour Clover
Trifolium fucatum is an annual plant with stout stems; it can growi 10 - 80cm tall[
The plant has long been a favourite food of the native peoples in western N. America, where it is still commonly harvested from the wild for local use.
Eating this plant can cause bloat, especially if larger quantities are consumed[
Southwestern N. America - Oregon, California
]. Moist places, often more or less brackish; at elevations up to 900 metres[
Succeeds in a moist, well-drained circum-neutral soil in full sun[
]. Succeeds in poor soils.
It grows well in an apple orchard, the trees will produce tastier fruit that stores better[
]. It should not be grown with camellias or gooseberries because it harbours a mite that can cause fruit drop in the gooseberries and premature budding in the camellias[
This species has a symbiotic relationship with certain soil bacteria, these bacteria form nodules on the roots and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby[
]. Buttercups growing nearby depress the growth of the nitrogen bacteria by means of a root exudate[
]. When removing plant remains at the end of the growing season, it is best to only remove the aerial parts of the plant, leaving the roots in the ground to decay and release their nitrogen.
Leaves - raw or cooked[
]. A sweet flavour[
Trifolium species are generally eaten before the plant comes into flower. Eating larger quantities can cause bloat - traditionally, the leaves were eaten with other foods that aid in digestion and therefore prevent bloating[
Seeds - raw[
Flowers and young seedpods - raw or cooked[
]. No more details, but it is probably referring to the immature seedpods.
Pre-soak the seed for 12 hours in warm water and then sow in spring in situ.
If the seed is in short supply it might be better to sow it in pots in a cold frame. When they are large enough to handle, prick the seedlings out into individual pots and plant them out after the last expected frosts.