Plant of the Month Pages
Tree Tobacco - Nicotiana glauca
Common Name(s):Tree Tobacco
Scientific Name:Nicotiana glauca
Family:Solanaceae (Nightshade)
Plant Type:Shrub Tree
Size:up to 25 feeet
Habitat:streambeds and disturbed soils
Blooms:January to December
Fire Response:Germinate from Seed

Tree Tobacco does not have a glowing reputation in the Santa Monicas, likely owing to its commonness but more probably to its non-native status. It is, however, one of the few plants in our area that still flowers into late fall and early winter months, a welcoming sight in the browned landscape. This fast-growing, poisonous plant was brought from South America - probably Argentina - in the late 1800s. It can be found growing below 4000 feet. The species name glauca means bluish-gray, referring to the color of the 1 to 4 inch long oval-shaped leaves found alternating on long stems. The flowers are 1 1/4 to 2-inches long, yellow and tubular, congregating at the ends of branches. Common bloom time is April to November, but it doesn't always obey the schedule, especially in the warmer parts of the area.

It is technically a misnomer to refer to Nicotiana glauca as Indian Tobacco, as that is the common name of a separate species, though this and others in the Nicotiana genus are often grouped and referred to as such. Common characteristics of Nicotiana are a sticky leaf texture, smelly odor, and narcotic properties. As the name suggests, members of this genus were of social and medicinal uses to native peoples of the region. They may also repel insects. As mentioned above, the plant is non-native, poisonous and invasive.

Contributed by Liz Baumann

Featured Plants in the Solanaceae (Nightshade) Family:


Tree Tobacco - Originally featured: January 2007
Last modified: April 30 2024 20:35:19.
References:
Wildflowers of the Santa Monica Mountains, by Milt McAuley
Flowering Plants: The Santa Monica Mountains, Coastal and Chaparral Regions of Southern California, by Nancy Dale
Chumash Ethnobotany: Plant Knowledge Among the Chumash People.., by Jan Timbrook

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