Eucalyptus loxophleba, commonly known asYork gum,daarwet,goatta,twottaoryandee, is a species of tree ormalleethat isendemicto Western Australia. It has rough bark on the trunk, smooth olive to brownish bark above, lance-shaped adult leaves, flowers buds in groups of between seven and eleven, white flowers and conical fruit.
Eucalyptus loxophlebais a mallee or a tree that typically grows to a height of 5 to 15 metres (16 to 49 ft) and forms alignotuber. The trunk has a diameter of about of 0.6 metres (2 ft) and varying amounts, depending on subspecies, of rough fibrous-flaky or smooth bark on the trunk and smooth grey-brown over copper bark above. Young plants andcoppiceregrowth have more or less triangular, egg-shaped or almost roundglaucousleaves that are 45–100 mm (1.8–3.9 in) long and 35–90 mm (1.4–3.5 in) wide. Adult leaves are lance-shaped to curved, the same glossy, dark green on both sides, 70–155 mm (2.8–6.1 in) long and 10–20 mm (0.39–0.79 in) wide tapering to apetiole10–25 mm (0.39–0.98 in) long. The flower buds are arranged in leaf axils in groups of seven, nine or eleven on an unbranchedpeduncle5–15 mm (0.20–0.59 in) long, the individual buds onpedicels1–5 mm (0.039–0.197 in) long. Mature buds are oval to pear shaped, 5–8 mm (0.20–0.31 in) long and 3–4 mm (0.12–0.16 in) wide with a roundedoperculum. Flowering has been observed in most months and the flowers are white. The fruit is a woody, conicalcapsule4–8 mm (0.16–0.31 in) long and 4–6 mm (0.16–0.24 in) wide with the valves below rim level.
Thespecific epithet(loxophleba) is derived from theGreekloxosmeaning "cross-wise" andphleps phlebosmeaning "a vein".Noongarpeoples know the tree as daarwet, goatta, twotta or yandee,the latter is noted as in popular use.
In 1972,Ian Brookerdescribed the subspeciesgratiaeandloxophlebaand in 1992Lawrie JohnsonandKen Hilldescribed subspecieslissophloiaandsupralaevis.All four names have been accepted by the Australian Plant Census.
Eucalyptus loxophlebasubsp.gratiaeBrookeris a tree with smooth, shining bark and larger leaves, buds and fruit that theautonym, subsp.loxophleba.
Eucalyptus loxophlebasubsp.lissophloiaL.A.S.Johnson & K.D.Hillis a mallee with only or mostly only smooth bark.
Eucalyptus loxophlebasubsp.loxophlebaBenth.is a tree with rough bark from the trunk to the smaller branches.
Eucalyptus loxophlebasubsp.supralaevisL.A.S.Johnson & K.D.Hillis a tree with rough bark at the base of the trunk and smooth bark on the larger branches and often also the upper trunk.
Woodlands containingE. loxophlebaare found across a broad swathe of Western Australia from theMid Westsouth through theWheatbeltand east into theGoldfields-Esperanceregion of the state. It is found among rocky outcrops and on flats, rises, slopes, hilltops, near salt lakes and along drainage lines. The species will grow in a range of soil types such as red-brown or rocky loam, in sands or sandy clays overlaterite, dolerite orgranite.The tree was recorded as common around the early settlement ofYork, whence the vernacular "York gum" is derived, and areas nearBolgart,Toodyay,Northamand fromNarrogintoBroomehill.