Senna pendula, also known as Easter Cassia, Christmas Senna, winter Senna, climbing Cassia, golden shower, pendant Senna and valamuerto,Senna pendula var. Glabrata by Weeds of Australia (biosecurity Queensland edition), Queensland Government. Retrieved 13 April 2020 is a plant of the Fabaceae family with a shrub habit that is native to South America. It used in various parts of the world as an ornamental plant and is an environmental weed in Australia. The flowers are yellow and the name pendula means 'pendulous' or 'drooping'.Irwin, HS & Barneby, RC, 1982 Mem.New York Bot.Gard.35: 1-918 [in 2 parts] American Cassiinae
Description
It is a fast-growing,Senna pendula (Humb. & Bonpl. ex Willd.) H.S.Irwin & Barneby by Weeds Australia spreading, scrambling or erect shrub that reaches 2–4 metres in height with multi-branched and arching stems and branches. Its single-compound, hairless leaves feature three to six duos of wide leaflets that are 1–5 cm long and 5–20 mm wide with rounded tips and salient yellowish margins.
Senna pendula is distinguished from Senna bicapsularis which has 3 pairs of leaflets on each leaf, while this one has 4–7 pairs of leaflets on each leaf and a gland between each pair of leaflets. S. bicapsularis has flowers borne on rather short pedicels (flower stalks) that are less than half a centimeter in length, whereas S. pendula has flowers borne on longer (1 to 3 cm) pedicels. S. pendula may flower from as early as late summer, whereas S. bicapsularis blooms from late autumn to winter.Christmas Cassia Causes Confusion By Marc Frank, University of Florida
Inflorescences Its bright yellow flowers, which are about 3 cm across, have five large petals and are foaled in leafy clumps at the tips of the branches. The fruit is in a cylindrical pod (10–20 cm long and 6–12 mm wide) that hangs down. It flowers prominently at Easter in the southern hemisphere (or early autumn), hence its common name. It also has an insignificant flowering season in early summer (around Christmas in the southern hemisphere).Irwin.H.S.& Barneby,R.C., 1982 Mem.N.Y.Bot.Gard.35(1 & 2):1-918 The American Cassiinae
Varieties
17 varieties are accepted.
Senna pendula var. ambigua – southeastern Brazil Senna pendula var. dolichandra – eastern Brazil Senna pendula var. eriocarpa – Bolivia and northwestern Argentina Senna pendula var. glabrata – Bolivia, Brazil, and Paraguay Senna pendula var. hemirostrata – Belize, Guatemala, and southeastern Mexico Senna pendula var. indecora – southern Mexico, Central America, the Caribbean, Colombia, and Venezuela Senna pendula var. indistincta – northern and northeastern Brazil Senna pendula var. meticola – Venezuela Senna pendula var. missionum – northeastern Argentina (Misiones) Senna pendula var. ovalifolia – Mexico and northern Argentina Senna pendula var. paludicola – Bolivia, northeastern Argentina, Uruguay, Paraguay, and southern and west-central Brazil Senna pendula var. pendula – Mexico to western Brazil Senna pendula var. praeandina – Peru, Bolivia, and northern Brazil Senna pendula var. recondita – southern Brazil Senna pendula var. scandens – Bolivia and Peru Senna pendula var. stahlii – Puerto Rico Senna pendula var. tenuifolia – Peru, Bolivia, and western Brazil
Cultivation Senna pendula was introduced as a garden plant in Australia in 1957, where it was described in a Brisbane nursery catalogue as, "a useful shrub bearing masses of buttercup-shaped flowers in autumn and early winter". Much sought for, gardeners had paid four shillings to purchase this plant during the mid 20th century. The shrub was in the market for many decades, though now it is no longer sold due its invasive nature.Easter blooms bring hidden menace by Annette McFarlane from The Courier
In Florida, Senna pendula is usually cultivated as, and misapplied to, Senna bicapsularis. An investigation of herbarium specimens from the University of Florida, University of South Florida, and Fairchild Tropical Botanic Garden had suggested that true Senna bicapsularis is very scarce in cultivation in Florida, whereas Senna pendula is more common and widespread.Senna bicapsularis Institute for Systematic Botany, University of South Florida, Tampa.
Invasive species The S. p. glabrata variety has become naturalised, and is also an environmental weed, in eastern Australia in the coastal and sub-coastal regions of south-eastern Queensland and New South Wales, where it is found in watercourses, gardens, disturbed sites, wastelands, roadsides, closed forests, forest margins and urban bushland.Easter cassia Senna pendula var. Glabrata by the Brisbane City Council Weed Identification Tool. Retrieved 13 April 2020
It is spread by seed, suckers and dumped garden waste.Cassia (Senna pendula var. Glabrata) by NSW WeedWise Despite it being invasive, it is not a prohibited or restricted invasive plant under the Biosecurity Act 2015.Easter cassia by Business Queensland from Queensland Government
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