What is "bush pea"

Bush \Bush\ (b[.u]sh), n. [OE. bosch, busch, buysch, bosk, busk; akin to D. bosch, OHG. busc, G. busch, Icel. b[=u]skr, b[=u]ski, Dan. busk, Sw. buske, and also to LL. boscus, buscus, Pr. bosc, It. bosco, Sp. & Pg. bosque, F. bois, OF. bos. Whether the LL. or G. form is the original is uncertain; if the LL., it is perh. from the same source as E. box a case. Cf. Ambush, Boscage, Bouquet, Box a case.]

1. A thicket, or place abounding in trees or shrubs; a wild forest.

   Note: This was the original sense of the word, as in the Dutch bosch, a wood, and was so used by Chaucer. In this sense it is extensively used in the British colonies, especially at the Cape of Good Hope, and also in Australia and Canada; as, to live or settle in the bush.

2. A shrub; esp., a shrub with branches rising from or near the root; a thick shrub or a cluster of shrubs.

   To bind a bush of thorns among sweet-smelling flowers.
   --Gascoigne.

3. A shrub cut off, or a shrublike branch of a tree; as, bushes to support pea vines.

4. A shrub or branch, properly, a branch of ivy (as sacred to Bacchus), hung out at vintners' doors, or as a tavern sign; hence, a tavern sign, and symbolically, the tavern itself.

   If it be true that good wine needs no bush, 't is true that a good play needs no epilogue.
   --Shak.

5. (Hunting) The tail, or brush, of a fox.

   To beat about the bush, to approach anything in a round-about manner, instead of coming directly to it; -- a metaphor taken from hunting.

   Bush bean (Bot.), a variety of bean which is low and requires no support ( Phaseolus vulgaris, variety nanus). See Bean, 1.

   Bush buck, or Bush goat (Zo["o]l.), a beautiful South African antelope ( Tragelaphus sylvaticus); -- so called because found mainly in wooden localities. The name is also applied to other species.

   Bush cat (Zo["o]l.), the serval. See Serval.

   Bush chat (Zo["o]l.), a bird of the genus Pratincola, of the Thrush family.

   Bush dog. (Zo["o]l.) See Potto.

   Bush hammer. See Bushhammer in the Vocabulary.

   Bush harrow (Agric.) See under Harrow.

   Bush hog (Zo["o]l.), a South African wild hog ( Potamoch[oe]rus Africanus); -- called also bush pig, and water hog.

   Bush master (Zo["o]l.), a venomous snake ( Lachesis mutus) of Guinea; -- called also surucucu.

   Bush pea (Bot.), a variety of pea that needs to be bushed.

   Bush shrike (Zo["o]l.), a bird of the genus Thamnophilus, and allied genera; -- called also batarg. Many species inhabit tropical America.

   Bush tit (Zo["o]l.), a small bird of the genus Psaltriparus, allied to the titmouse. Psaltriparus minimus inhabits California.

n. any of various plants of the genus Thermopsis having trifoliate leaves and yellow or purple racemose flowers