Eucalyptus yarriambiack
RuleTree to 10 m tall; bark rough to upper trunk, light grey-brown, box-type; smooth, light grey-brown above. Juvenile leaves shortly petiolate, alternate, narrowly lanceolate or elliptic-lanceolate, to 9 cm long, 1.1 cm wide, slightly discolorous, somewhat glossy, green to blue-green; adult leaves petiolate, alternate, held semi-erect, narrowly lanceolate or lanceolate, sometimes falcate, 5–10 cm long, 0.8–1.5 cm wide, somewhat glossy, olive-green or slightly bluish, new growth subglaucous; side veins acute; reticulation moderate, with numerous, large, irregular, island oil glands. Inflorescences axillary, unbranched; peduncles to 1.1 cm long, 7–11-flowered; buds pedicellate, ovoid to clavate, to 0.6 cm long, 0.3 cm long, lightly pruinose, no scar; operculum conical; stamens irregularly inflexed; anthers adnate, globoid; ovules in 4 vertical rows; flowers white. Fruit pedicellate, hemispherical to cupular, to 0.6 cm long, 0.4 cm diam.; disc descending; valves 3 or 4, below rim; seed dark brown, ovoid and slightly flattened, surface finely reticulate, helium ventral. Flowers autumn.
MuM. Known from a single location near Brim (between Warracknabeal and Beulah), occurs on well-drained soils near seasonal watercourses.
Included in a group of ‘Mallee-boxes’ by Rule (2012), which includes the Victorian species Eucalyptus polybractea, E. viridis, E. wimmerensis, E. walshii, E. filiformis, and E. hawkeri, but generally distinguished from these species by its persistent rough bark that extends to the upper stem and its relatively robust, few-stemmed habit.
Occurs in close proximity with and superficially resembles Eucalyptus largiflorens, which is distinguished from E. yarriambiack by the paler, pendulous leaves, terminal, compound inflorescences and scarred buds.
SpinningRule, K. (2012). Five new endemic eucalypts for Victoria. Muelleria 30: 83–105.