Arthur Andrew Hamilton

Prostanthera densa, commonly known as villous mint-bush, is a species of flowering plant in the family Lamiaceae and is endemic to near-coastal areas of New South Wales. It is an erect, often compact shrub with aromatic branches, egg-shaped leaves, and mauve flowers with orange markings inside.

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Simonachne maidenii is a species of grass (in the family Poaceae) endemic to New South Wales. It is the sole species in genus Simonachne. It is a scrambling perennial grass with slender, rigid horizontal stems and branches which ascend. The leaves have sheathes which are sparsely hairy and the ligule is fringed. The racemes are terminal or axillary, and about 4 centimetres (1.6 in) long, with the lateral racemes being shorter and partially enclosed by the sheath. When mature the spikelets (2.5–3 mm long ) fall entirely. The upper glume has five nerves. The lower lemma (similar to the upper

Simonachne maidenii is a species of grass (in the family Poaceae) endemic to New South Wales. It is the sole species in genus Simonachne. It is a scrambling perennial grass with slender, rigid horizontal stems and branches which ascend. The leaves have sheathes which are sparsely hairy and the ligule is fringed. The racemes are terminal or axillary, and about 4 centimetres (1.6 in) long, with the lateral racemes being shorter and partially enclosed by the sheath. When mature the spikelets (2.5–3 mm long ) fall entirely. The upper glume has five nerves. The lower lemma (similar to the upper

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