Showing posts with label Asteraceae. Show all posts
Showing posts with label Asteraceae. Show all posts

Tuesday, December 20, 2022

Emilia baldwinii

 An endemic herb rather common along the shores on south and west coast, usually on sand. Rarely on rocks just behind the seashore. 

Wednesday, April 14, 2021

Adenostemma lavenia var. reticulatum [As Adenostemma macrophyllum]

Rather rare native herb grows in moist places in the hill country forests. Flowering throughout the year. 

Flower head size - 0.5 cm across 




Sunday, January 3, 2021

Thursday, December 24, 2020

Myriactis wightii

Common native herb grows among short grass in montane scrubs and forests. Flowering from September to April and probably throughout the year. 


 

Thursday, November 19, 2020

වල් දුම්කොළ [Wal Dumkola](Sonchus wightianus)

 Common weed of roadsides and in the mortar of bridges and road embankments in the lower montane zone. Flowering from January to June and probably throughout the year. Possibly a native herb of Sri Lanka since it is falling within the natural distribution range of the species. But in absence of specimens of it earlier than 1915 Sonchus wightianus also considered as an introduced species which is native to India and China (http://www.plantsoftheworldonline.org/taxon/urn:lsid:ipni.org:names:250399-1)


Thursday, March 5, 2020

Blumea zeylanica

An endemic tall herb of moist shady places at forest edges and roadsides above 1000 m a.s.l. Rather uncommon. Flowering throughout the year.

Thursday, February 20, 2020

Monday, February 10, 2020

මහ කිඹු [Maha Kimbu] (Dichrocephala integrifolia)

An indigenous common weed of drainage ditches, tea estates and moist waste grounds. Flowering throughout the year. 

Wednesday, January 29, 2020

Acilepis setigera (Syn: Vernonia setigera)

An indigenous shrub common in jungle paths and montane forests from 1500 - 1800 m elevations. Flowering from December to June.

Sunday, January 5, 2020

Oriental false hawksbeard (Youngia japonica)

An indigenous very common weed of cultivation and roadsides at mid elevations. Flowering from September to June.

Thursday, January 2, 2020

Quick weed (Galinsoga parviflora)

An introduced herb native to tropical South America. A common weed in cultivated grounds and wastelands. Flowering throughout the year.

Tuesday, December 24, 2019

Blumea hieraciifolia

An indigenous perennial herb growing in patana grasslands, roadsides and forest margins above 1000 m a.s.l. Flowering from October to May. The variety flexuosa is endemic to the Sri Lanka and it occurs in two forms (yellow - flowered and purple - flowered)

Sunday, March 24, 2019

Gynura hispida

An endemic herb grows in moist rocky crevices above 6000 ft. elevations. Rare. Flowering from March to May.

Wednesday, May 9, 2018

Acilepis gardneri [Syn: Vernonia gardneri]

Rather rare endemic perennial herb or subshrubs occurs in moist shady places of the hill country.  Flowering from February to May. 

Thursday, January 11, 2018

Mistflower/Spreading snakeroot (Ageratina riparia [Syn: Eupatorium riparium])

Native herb of Mexico and West Indies. Probably introduced as an ornamental (Earliest specimen was collected from the neighborhood of  Hakgala Botanic garden in 1926). Escaped and widely naturalized along roadsides and tracks, margins of cultivation and forest edges and waste lands above 1300 m elevations.It has become a serious weed and listed as a invasive plant to Sri Lanka. Mistflower forms a dense strand and prevent the growth of native plants. Seeds spread by wind and water. Flowering from December to May and probably throughout the year.

Friday, March 31, 2017

වල් තේ කොළ [Wal te kola]Ceylon tea/Spanish needle/Beggar's tick (Bidens pilosa var. pilosa)

An introduced herb native to temperate and tropical America. Naturalized in Sri Lanka and occurs as two varieties.
var. pilosa (Above pic) - Without or usually with very small white ray flowers. Only known from Peradeniya-Kandy area. Flowering from November to March.
var. minor - Very common weed of roadsides, disturbed places, cultivated grounds, etc. in the montaze zone. Flowering occurs throughout the year.

Sunday, November 20, 2016

Madras Carpet (Grangea maderaspatana)

An uncommon  native prostrate herb on moist grounds like margins of tanks in the drier northern part of the country. Flowering throughout the year.

Sunday, September 25, 2016

Anaphalis subdecurrens

Native annual herb very common on grassy banks and patanas of hill country from 1200 to 2100 m elevations. Flowering throughout the year.