Chresta curumbensis (Philipson) H.Rob.ASTERACEAELocal: Parque Ecolgico Dom Bosco, Braslia, Brasil.Ref.: a) Jos Carlos Menezes; b) The C. V. Starr Virtual Herbarium, New York Botanical Garden.
Slide information:"Name: Cyanea grimesiana subsp. obataeLocation: Kaluaa Gulch, south forkDate: 1986 FebruaryNotes: Gaud. 1829 var. Obatae St. John."obata_john_02_065Photo used with permission by John K. Obatanativeplants.hawaii.edu
Plant IdentificationCommon name: cobblers pegs, pitchforksBotanical Name: Bidens pilosa L.Family name: AsteraceaeLocation: Valley Heights, NSWDate: 15th March 2009Collector: John PoulakisHabitat: Native of South America. A woody, erect, annual herb grows to 0.21.5 m high. Found along drainage lines, roadsides and disturbed habitats. Seeds are dispersed by adhering to clothes and animal fur.Economic significance: Minor weed. This weed will out-compete native species on exposed and re-vegetation sites. Strong allelopathic influences which suppress germination and seedling growth of a number of crops.
Slide Information:"Name: Trematolobelia singularis? (T. macrostachys)Location: 1 km from crest of middle ridge, Moanalua Valley"obata_john_02_507Photo used with permission by John K. Obata