| Dicotyledon | Literature for Nicotiana glauca
Wagner et al., 1990, 1999. |
| Solanaceae -- The Nightshade Family | Bibliography |
| Nicotiana glauca | |
Common name(s): makahala, mustard tree, paka, tree tobacco |
| General Information | ||
|---|---|---|
| Distribution | Native to Argentina, now widely naturalized in warm temperate regions of the world.In the Hawaiian Islands, naturalized on O`ahu, Moloka`i, Lana`i, Maui, Kaho`olawe, Hawai`i. | |
| Habit |
Shrubs or small spindly trees, glabrous except for corolla tube. |
|
| Leaves |
Leaves simple, alternate, glaucous, ovate to ovate-lanceolate, often 4-10 cm long, 2-8 cm wide, glabrous, margins entire, apex obtuse to broadly acuminate, base obtuse, petioles terete, 1-6 cm long. |
|
| Flowers |
Flowers in short, dense, terminal panicles, pedicels up to 15 mm long, bracts lanceolate, 2-7 mm long; calyx usually 7-14 mm long, the lobes narrowly elliptic, connate ca. 3/4 their length, intersepalar membrane inconspicuous; corolla tube 20-40 mm long, 3-4 mm wide at apex of calyx, the tube proper narrower than throat cylinder, throat cup symmetrical, yellow or yellowish, corolla limb 9-13 mm in diameter, remaining open in daylight, the lobes obtuse, connate most of their length; stamens equal or nearly so; filaments inserted in lower 1/2 of tube, 20-30 mm long. |
|
| Fruit |
Capsules ovoid-ellipsoid to nearly subglobose, equalling or shorter than calyx, 7-13 mm long. |
|
| Seeds |
Seeds numerous, reniform to oblong-reniform, 0.5-0.9 mm long, testa honeycombed or with wrinkles. |
|
| Chromosomes |
2n = 24, 36, 48 |
|
| Notes |
Self-compatible |
|
