| Sagg spider orchid | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Orchidaceae |
| Subfamily: | Orchidoideae |
| Tribe: | Diurideae |
| Genus: | Caladenia |
| Species: | C. saggicola |
| Binomial name | |
| Caladenia saggicola | |
| Synonyms | |
Caladenia saggicola, commonly known as the sagg spider orchid, is a species of orchid endemic to Tasmania. It has a single erect, hairy leaf and one or two white flowers with very pale reddish lines and black tips.
Caladenia saggicola is a terrestrial, perennial, deciduous, herb with an underground tuber and a single erect, hairy leaf, 40–130 mm (2–5 in) long and 3–8 mm (0.1–0.3 in) wide. One or two flowers 50–70 mm (2–3 in) wide are borne on a stalk 150–350 mm (6–10 in) tall. The flowers are white with very pale reddish lines and the sepals and petals have long, grey to blackish, thread-like tips. The dorsal sepal is 30–60 mm (1–2 in) long and 2–3 mm (0.08–0.1 in) wide with a long, drooping tip. The lateral sepals are 30–60 mm (1–2 in) long and 3–5 mm (0.1–0.2 in) wide and spreading widely but with drooping tips. The petals are 30–40 mm (1–2 in) long and 2–4 mm (0.08–0.2 in) wide and arranged like the lateral sepals. The labellum is 10–14 mm (0.4–0.6 in) long, 8–10 mm (0.3–0.4 in) wide and white to cream-coloured. The sides of the labellum have teeth up to 2 mm (0.08 in) long, the tip of the labellum is curled under and there are four or six rows of calli up to 1.5 mm (0.06 in) long, along the mid-line of the labellum. Flowering occurs from September to October. [2] [3] [4] [5]
Caladenia saggicola was first described in 1998 by David Jones from a specimen collected near Cambridge and the description was published in Australian Orchid Research. [1] The specific epithet (saggicola) is a reference to the common name "sagg" sometimes given to Lomandra longifolia which often forms a dense understorey with this orchid. [3]
The sagg spider orchid is only found near Cambridge and Dodges Ferry where it grows in open woodland with a dense understory of Lomandra longifolia tussocks. [2] [3]
Caladenia saggicola is classified as "critically endangered" under the Commonwealth Government Environment Protection and Biodiversity Conservation Act 1999 (EPBC) Act. Only about 450 individual plants are known to survive near Cambridge and three near Dodges Ferry. The main threat to the species is nearby development. Both populations occur on private land; the main habitat is carefully preserved however. Unfavourable fire regimes/uncontrolled bushfire, drought and grazing by rabbits are also threats to the species, although the main habitat is very carefully managed and monitored, and part is in a rabbit-proof fenced area. [3] [4] [5] [6]
Caladenia angustata, commonly known as white caps, is a species of orchid endemic to Tasmania. It has a single, hairy leaf and one or two white to pinkish flowers which are reddish or greenish on their backs.
Caladenia longicauda subspecies borealis, commonly known as daddy-long-legs spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single hairy leaf and up to three mostly white flowers with long, drooping sepals and petals.
Caladenia australis, commonly known as southern spider orchid, is a plant in the orchid family Orchidaceae and is endemic to Victoria, although it was also found on one Bass Strait island on one occasion in 1968. It has a single hairy leaf and usually only one creamy-yellow flower with red streaks, the flower on a hairy stalk.
Caladenia caudata, commonly known as tailed spider orchid, is a plant in the orchid family Orchidaceae and is endemic to Tasmania. It is a ground orchid with a single hairy leaf and up to four red, or yellow and red flowers with dark red to almost black tips.
Caladenia cremna, commonly known as Don's spider orchid, is a plant in the orchid family Orchidaceae and is endemic to a small area in Victoria. It is a rare ground orchid with a single hairy leaf and a single yellow flower with red striations.
Caladenia cretacea, commonly known as Stuart Mill spider orchid, is a plant in the orchid family Orchidaceae and is endemic to a small area in Victoria. It is a rare ground orchid with a single leaf and one or two white flowers on a hairy stalk.
Caladenia cruciformis, commonly known as the crucifix spider orchid, or red cross spider orchid, is a plant in the orchid family Orchidaceae and is endemic to a small area in Victoria. It is a rare ground orchid with a single, sparsely hairy leaf and a single dark red to crimson flower with blackish tips.
Caladenia dienema, commonly known as the windswept spider-orchid, is a plant in the orchid family Orchidaceae and is endemic to Tasmania. It is a ground orchid with a single, hairy leaf and a single, variably-coloured, usually dark red flower on a thin, wiry stem 5–12 cm (2–5 in) high.
Caladenia echidnachila, commonly known as the fawn spider orchid, is a plant in the orchid family Orchidaceae and is endemic to Tasmania. It is a ground orchid with a single, hairy leaf and one or two fawn-coloured flowers with thin red lines on the sepals and petals.
Caladenia fragrantissima, commonly known as the scented spider orchid, is a plant in the orchid family Orchidaceae and is endemic to Victoria and South Australia. It is a ground orchid with a single hairy leaf and up to three creamy-white to yellowish-green flowers. It is possible that it is conspecific with Caladenia orientalis.
Caladenia fulva, commonly known as the tawny spider orchid, is a plant in the orchid family Orchidaceae and is endemic to a small area in Victoria. It is a ground orchid with a single hairy leaf and one or two creamy-white to pale yellow flowers. Only two small populations are known, although both are in nature reserves.
Caladenia helvina, commonly known as the summer spider orchid, is a plant in the orchid family Orchidaceae and is endemic to Tasmania. It is a ground orchid with a single hairy leaf and usually a single greenish-yellow to pale yellow flower with reddish teeth on the sides of the labellum and reddish calli along its mid-line.
Caladenia leptoclavia, commonly known as the thin-clubbed spider orchid, is a plant in the orchid family Orchidaceae and is endemic to New South Wales. It is a ground orchid with a single hairy leaf and a single pale cream-coloured to yellow flower with dark reddish stripes.
Caladenia magnifica, commonly known as the magnificent spider orchid, is a species of orchid endemic to Victoria. It has a single leaf and one or two reddish crimson or yellow flowers streaked with crimson and with dark reddish tips. It has not been sighted since 1979 and is presumed to be extinct.
Caladenia meridionalis, commonly known as the south coast spider orchid, is a species of orchid endemic to the south-west of Western Australia. It is an early-flowering orchid with a single erect, hairy leaf and one or two white flowers with long, drooping lateral sepals and petals.
Caladenia occidentalis, commonly known as the ruby spider orchid, is a species of orchid endemic to the south-west of Western Australia. It has a single erect, hairy leaf and one or two pinkish-red flowers with a white, red-striped labellum.
Caladenia orientalis, commonly known as the eastern spider orchid, is a species of orchid endemic to Victoria. It is a ground orchid with a single hairy leaf and one or two creamy-white to yellowish-green flowers and which only grows near the Mornington Peninsula.
Caladenia patersonii is a plant in the orchid family Orchidaceae and is native to Victoria and Tasmania. It is a ground orchid with a single hairy leaf and one or two creamy-white, yellowish or pink flowers.
Caladenia pendens subsp. talbotii, commonly known as Talbot's spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single hairy leaf and one or two white, red and yellow flowers with long drooping petals and sepals and sometimes has a citrus-like scent.
Caladenia petrensis, commonly known as the rock spider orchid, is a species of plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single erect, hairy leaf and up to three pale yellow flowers with drooping lateral sepals and petals.
