| Lepidium howei-insulae | |
|---|---|
 | |
| Herbarium specimen | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Brassicales |
| Family: | Brassicaceae |
| Genus: | Lepidium |
| Species: | L. howei-insulae |
| Binomial name | |
| Lepidium howei-insulae | |
Lepidium howei-insulae , commonly known as mustard & cress, is a flowering plant in the mustard and cabbage family. The specific epithet alludes to Lord Howe Island, where it is found. [1]
It is a perennial subshrub, sometimes with creeping stems, growing to about 1 m in height. The acute to subapiculate, fleshy, glabrous leaves are usually 2–6 cm long, 2–4 mm wide. The small white flowers have petals 1.5 mm long. The ellipsoidal seeds are 1.5 mm long. [1]
The plant is endemic to Australia’s subtropical Lord Howe Island group in the Tasman Sea. As well as having a scattered distribution on the main island, where it occupies rocky ledges and sandy pockets near the sea, it has been recorded from the nearby stack of Balls Pyramid. [1]
Lepidium is a genus of plants in the mustard/cabbage family, Brassicaceae. The genus is widely distributed in the Americas, Africa, Asia, Europe, and Australia. It includes familiar species such as garden cress, maca, and dittander. General common names include peppercress, peppergrass, pepperweed, and pepperwort. Some species form tumbleweeds. The genus name Lepidium is a Greek word meaning 'small scale', which is thought to be derived from a folk medicine usage of the plant to treat leprosy, which cause small scales on the skin. Another meaning is related to the small scale-like fruit.
Commelina cyanea, commonly known as scurvy weed, is a perennial prostrate herb of the family Commelinaceae native to moist forests and woodlands of eastern Australia, Lord Howe Island and Norfolk Island. The blue flowers appear over the warmer months and are pollinated by bees and flies.
Passiflora herbertiana, or native passionfruit, is a widespread climbing twiner native to moist forests on the coast and ranges of eastern Australia. The subspecies P. h. insulae-howei is endemic to Lord Howe Island in the Tasman Sea.
Lepidium didymum, the lesser swine-cress, is a species of flowering plant in the family Brassicaceae.
Melaleuca howeana, commonly known as tea tree, is a plant in the myrtle family, Myrtaceae and is endemic to the Lord Howe Island group, 600 km (400 mi) off the east coast of Australia. It is common in exposed areas, on cliffs and ridges, occasionally forming pure stands. Its closest mainland relative is Melaleuca ericifolia.
Drypetes deplanchei is a tree of eastern and northern Australia. It also occurs in New Caledonia and Lord Howe Island. The genus is derived from the Greek, dryppa meaning "olive fruit". The species named after Dr. Emile Deplanche, who collected this plant at New Caledonia. Common names include yellow tulip, grey boxwood, white myrtle, grey bark and yellow tulipwood.
Alyxia squamulosa, commonly known as alyxia vine, is a species of shrub in the family Apocynaceae. It is endemic to Australia’s subtropical Lord Howe Island in the Tasman Sea. The specific epithet derives from the many bracteoles, or ‘scales’ that subtend the flowers. The plant previously known as Alyxia lindii is considered a taxonomic synonym of A. squamulosa, being reassigned in 2002.
Lepidium nesophilum is a species of flowering plant in the mustard and cabbage family that is endemic to the subtropical Lord Howe Island in the Tasman Sea between Australia and New Zealand.
Wahlenbergia insulae-howei is a flowering plant in the bellflower family. The specific epithet alludes to Lord Howe Island, where it is found.
Dracophyllum fitzgeraldii, commonly known as the Fitzgeraldii tree or Fitzgerald tree, is a flowering plant in the family Ericaceae. It is endemic to Lord Howe Island, though its closest relatives are species native to northern Queensland and to New Caledonia.
Rapanea mccomishii is a flowering plant in the family Primulaceae. The specific epithet honours James Doran McComish (1881–1948), who made several visits to, and collected extensively on, Lord Howe Island in the 1930s.
Coprosma lanceolaris is a flowering plant in the family Rubiaceae. The specific epithet comes from the Latin lancea with the suffix -aris, alluding to the shape of the leaves.
Exocarpos homalocladus, commonly known as the grass tree, is a flowering plant in the sandalwood family. The specific epithet comes from the Greek homalos (“flat”) and clados, with reference to the structure of the plant.
Guioa coriacea , commonly known as cedar or island cedar, is a flowering plant in the family Sapindaceae. The specific epithet refers to the coriaceous (leathery) leaves.
Melicytus novae-zelandiae subsp. centurionis is a flowering plant in the family Violaceae. It is a subspecies of Melicytus novae-zelandiae, known in New Zealand as coastal mahoe. The subspecific epithet honours the military Captain James Doran McComish (1881–1948), who made several visits in the 1930s to collect plants on Lord Howe Island.
Apium prostratum subsp. howense is a flowering plant in the carrot family native to Australia's Lord Howe Island. The epithet howense derives from the name of that island.
Leptospermum polygalifolium subsp. howense, commonly known as tea tree or tea-tree, is a flowering plant in the myrtle family, Myrtaceae. The subspecific epithet refers to the island to which the subspecies is endemic.
Passiflora herbertiana subsp. insulae-howei is a flowering plant in the passion flower family. The subspecific epithet refers to the island to which the subspecies is endemic.
Boehmeria calophleba is a flowering plant in the nettle family.
Lepidium coronopus,, is a species of flowering plant in the mustard family which is native to parts of Africa, western Asia and Europe, growing in shingle banks, wasteland or cultivated fields.
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