Flora of New York/algae

	Flora of New York — algae
	Table of contents	Genus index	Protected species index	Invasive species index

Order Charales

Charales are freshwater green algae in kingdom Plantae, division Charophyta, class Charophyceae.

Family Characeae

Characeae is currently the only family in order Charales. It contains the genera Chara, Lamprothamnium, Lychnothamnus, Nitella, Nitellopsis, and Tolypella.

Nitellopsis

Nitellopsis obtusa Starry stonewort (Nitellopsis obtusa) is a freshwater marine species, native to Eurasia, and listed as very highly invasive in New York State.

Charales — Characeae
Genus Nitellopsis Hy, 1899	Starry Stonewort	N.Y. Status	Images	Distribution	NY NPT
Nitellopsis obtusa  (Desvaux) J.Groves 1810. Chara obtusa Desvaux 1907. Tolypellopsis obtusa (Desvaux) Beguinot & Formiggini 1919. Nitellopsis obtusa (Desvaux) J.Groves	Starry stonewort ⓘ	Introduced, Very highly invasive,  NYIS Tier: 4,  iMapInvasives,  Invasive.org: [1],  GRIIS-US: Present, AlgaeBase		iNat GBIF 4 counties	Images Wikispecies

Chara

Chara vulgaris

Charales — Characeae — Chareae — Chara
Genus Chara L., 1753	Stonewort	N.Y. Status	Images	Distribution	NY NPT
Chara vulgaris 1753. Chara vulgaris L. 1824. Nitella batrachosperma C.Agardh	Common stonewort ⓘ	Native		iNat GBIF 3 counties	Images Wikispecies
Chara braunii  C.C.Gmel. 1826. Chara braunii C.C.Gmel.	Braun's Stonewort	Native		iNat GBIF Essex (2021)	Images Wikispecies
Chara contraria  Kütz. 1839. Chara contraria Kütz.	Opposite stonewort ⓘ	Native		iNat GBIF 2 counties	Images Wikispecies