ארכיון יומן של נובמבר 2020

נובמבר 01, 2020

NYBG EcoFlora November EcoQuest Challenge

BEHOLD BACCHARIS

Groundsel Tree (Baccharis halimifolia) is an important salt marsh species that helps to reinforce and stabilize vulnerable shorelines and provide cover for wildlife. One of the few indigenous shrubs to flower in fall, its nectar provides food for many insects, including Beetles, Bees, Flies, Wasps, and Butterflies. Your observations can help document the versatility and beauty of this often overlooked native plant.

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פורסם ב נובמבר 01, 2020 02:32 אחה"צ על־ידי danielatha danielatha | 3 comments | הוספת תגובה

נובמבר 16, 2020

Yams (Dioscorea) of Northeastern North America

Wild Yam, Dioscorea villosa Chinese Yam, Dioscorea polystachya

Key to the Dioscorea Species of Northeastern North America

1a. Vine from rhizomes; leaf axils without aerial tubers; mature petioles nearly circular in cross section; leaves ovate-cordate, the sides evenly convex, basal lobes absent; fruits winged..... Dioscorea villosa

1b. Vine from woody tuber; leaf axils often with aerial tubers; mature petioles strongly channeled; leaves hastate, sides with some concavity, basal lobes usually present; fruits unknown in North America..... Dioscorea polystachya

Dioscorea polystachya Turcz. – Chinese Yam, Cinnamon Vine
Introduced; NYS Prohibited; present in NYC. Description. iNaturalist observations from New York City. GloBI interactions.
Indiana non-native plant invasiveness ranking form. Pest Risk Management Document for Dioscorea polystachya (Chinese yam) in Canada

Dioscorea villosa L. – Wild Yam
Indigenous; (CoC 6); present in NYC. Description. iNaturalist observations from New York City. GloBI interactions.

פורסם ב נובמבר 16, 2020 06:11 אחה"צ על־ידי danielatha danielatha | 2 comments | הוספת תגובה