| NOT [plants 1-2 dm tall, with small
appressed leaves; pubescent; flowers yellow; of sandy habitats] |
| shrubs; NOT [herbs] |
| plants NOT aquatic |
| plants green; NOT [plants white, pink
or reddish brown] |
| plants unarmed; NOT [plants armed with
prickles, spines or thorns] |
| leaves alternate; NOT [leaves opposite
or whorled] |
| leaves well developed; NOT [leaves
reduced to scales] |
| leaves not needle-like; NOT [leaves
needle-like 5-10 mm long] |
| perianth biseriate (i.e. of two
different series of appendages, the inner generally larger, coloured,
the outer generally smaller, greenish); NOT [perianth uniseriate (i.e.
of only one series of appendages all more or less the same) or entirely
absent] |
| corolla of separate petals; NOT
[corolla of united petals, or only 2 or 3 petals connate or united and
the flowers markedly irregular] |
| stamens alternate with the petals; NOT
[stamens opposite the petals] |
| stamens 5 |
| ovary inferior; NOT [ovary superior] |
| fruit yellow, red or black; NOT [fruit
white or orange-red] |
| fruit several-seeded; NOT [fruit
1-seeded] |