Picric acid is an organic compound with the formula (O2N)3C6H2OH. Its IUPAC name is 2,4,6-trinitrophenol (TNP). The name "picric" comes from the Greek word πικρός (pikros), meaning "bitter", due to its bitter taste. It is one of the most acidic phenols. Like other strongly nitrated organic compounds, picric acid is an explosive, which is its primary use. It has also been used as medicine (antiseptic, burn treatments) and as a dye.
Araucaria heterophylla is a vascular plant in the ancient and now disjointly distributed conifer family Araucariaceae. As its vernacular name Norfolk Island pine implies, the tree is endemic to Norfolk Island, an external territory of Australia located in the Pacific Ocean between New Zealand and New Caledonia, but is also cultivated elsewhere as an ornamental. The genus Araucaria occurs across the South Pacific, especially concentrated in New Caledonia where 13 closely related and similar-appearing species are found. It is sometimes called a star pine, Polynesian pine, triangle tree or living Christmas tree, due to its symmetrical shape as a sapling, although it is not a true pine.
Tsuga heterophylla, the western hemlock or western hemlock-spruce, is a species of hemlock native to the west coast of North America, with its northwestern limit on the Kenai Peninsula, Alaska, and its southeastern limit in northern Sonoma County, California.
Clitoria is a genus of mainly tropical and subtropical, insect-pollinated flowering pea vines.
Hakea pachyphylla is a flowering plant in the family Proteaceae and is endemic to the upper Blue Mountains in New South Wales. It is a small shrub with stiff, needle-shaped leaves and clusters of yellow flowers. Formerly thought to be a Blue Mountains form of Hakea propinqua.
Stylidium tenerum, the swamp triggerplant, is a dicotyledonous plant that belongs to the genus Stylidium that was described by Curt Polycarp Joachim Sprengel in 1826. Robert Brown had described this species in 1810 under the name S. tenellum, a name which had already been used for another species in 1805 by Olof Swartz. To add to the confusion, Rica Erickson had described and illustrated this taxon in 1958 under the name S. uliginosum, another currently accepted name for a related species.
Cotyledon tomentosa is a species of flowering plant in the family Crassulaceae, native to South Africa. It is a succulent evergreen shrub with large chunky ovate fuzzy green leaves. Its autonymous subspecies is known as the bear's paw because of the prominent "teeth" at the tips of its leaves. It forms large orange bell-shaped flowers in spring. In its native habitat, the Little Karoo region of South Africa, cotyledons usually grow in rocky quartz fields where they have excellent drainage provided by very porous soil.
Gymnosperma is a genus of North American flowering plants in the daisy family.
Billardiera heterophylla is a species of flowering plant in the family Pittosporaceae, known by the common name bluebell creeper. It is native to Western Australia, but is grown as an ornamental plant in appropriate climates worldwide. It can sometimes be found growing in the wild as an introduced species or garden escapee, for example in other Australian states and in California, where it is popular in landscaping. It is sometimes considered a weed.
Bossiaea heterophylla, commonly known as variable bossiaea, is a species of flowering plant in the family Fabaceae and is endemic to south-eastern Australia. It is a variable shrub with flattened stems, egg-shaped to linear leaves, and yellow and dark red flowers.
Olearia erubescens, commonly known as moth daisy-bush or pink-tip daisy-bush, is a species of flowering plant in the family Asteraceae. It is a shrub with stiff, prickly leaves and white "daisy" flowers, growing up to 2 metres high.
Persoonia oxycoccoides is a species of flowering plant in the family Proteaceae and is endemic to New South Wales. It is a spreading to prostrate shrub with smooth bark, hairy young branchlets, elliptic to egg-shaped leaves and yellow flowers arranged in groups of up to thirteen along a rachis that continues to grow after flowering.
Opisthiolepis is a genus of a sole described species of large trees, constituting part of the plant family Proteaceae. The species Opisthiolepis heterophylla most commonly has the names of blush silky oak, pink silky oak, brown silky oak and drunk rabbit.
Sarcotoechia is a genus of tropical rainforest trees, constituting part of the plant family Sapindaceae.
Artemisia marschalliana is a species of flowering plant in the family Asteraceae, native from Europe to Mongolia and the Caucasus. It was first described by Sprengel in 1826. It has been treated as a synonym of Artemisia campestris.
Systema Vegetabilium is a book published in four editions, following twelve earlier editions known as Systema Naturae. The first edition, published in 1774 and edited by Johan Andreas Murray is counted as edition 13 because it continues from the 12th edition of Systema Naturae. All the names in it are attributed to Carl Linnaeus. The second edition, published in 1784, includes plant species described by J.A. Murray and Carl Peter Thunberg. The third edition, was edited by Christiaan Hendrik Persoon
Petrophile heterophylla, commonly known as the variable-leaved conebush, is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a shrub with variably shaped, sometimes pinnately-divided leaves, and oval heads of silky-hairy, yellow to cream-coloured flowers.
Nepetoideae is a subfamily of plants in the family Lamiaceae.
Goodenia heterophylla is a species of plant in the family Goodeniaceae and is endemic to eastern Australia. It is an erect to trailing, more or less woody herb or shrub with linear to egg-shaped stem-leaves and racemes or thyrses of yellow flowers.
Trichocline spathulata is a plant in the daisy family, found in the south-west of Western Australia.
