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Key to Solanaceae
https://fsus.ncbg.unc.edu/main.php?pg=show-key.php&keyid=40398
1 Leaves all or mainly cauline. | |
4 Corolla ≥ 16 cm long. | |
4 Corolla < 16 cm long. | |
6 Flowers lavender or blue, the tube < 3× as long as its diameter; fruit a red, orange, or yellow berry; [subfamily Solanoideae]. | |
3 Plant herbaceous (some taxa keyed here can be robust and tough-stemmed, but are herbaceous, lacking overwintering buds on aerial stems). | |
9 Corolla salverform or narrowly funnel-shaped, with a well-developed tubular portion, this > 1 cm long (except in Calibrachoa) and either flared or essentially isodiametric and > 4× as long as its midpoint diameter, the limb expanding more or less abruptly from the tubular portion; fruit a capsule opening by longitudinal valves or by apical pores. | |
11 Flowers solitary, axillary; [subfamily Petunioideae]. | |
13 Calyx accrescent in fruit, wholly or partly surrounding the capsule; corolla lavender to blue, with a whitish center; flower bilaterally symmetrical; stamens 4; [subfamily Cestroideae; tribe Browallieae] | |
13 Calyx not accrescent, subtending the mature fruit; corolla white, pink, green, pink, or blue; flower radially symmetrical; stamens 5. | |
14 Leaves narrow, linear to narrowly oblancolate, to 0.5 mm wide; corolla tube 1.0-1.4 cm long; [subfamily Petunioideae] | |
9 Corolla either urceolate, campanulate, or rotate, lacking a narrow tubular portion that is both > 1 cm long and > 4× as long as its midpoint diameter; fruit a berry (or circumscissile capsule in Hyoscyamus); [subfamily Solanoideae]. | |
15 Fruit a circumscissile capsule; calyx accrescent, nearly enclosing the fruit; corolla cream to yellow, with a maroon center; inflorescence a strongly secund raceme; [tribe Hyoscyameae] | |
15 Fruit a berry (hollow in Capsicum); calyx either accrescent around the fruit or not (and then subtending the fruit); corolla various (but not as above, though in some Physalis yellow and with each petal marked with a purple or maroon spot); inflorescence various. | |
17 Berries 0.3-25 cm long. | |