1 "Fruit a schizocarp, drupaceous or indehiscent; leaves entire, undulate or dentate" 2 1 "Fruit a capsule; leaves pinnately or bipinnately compound" 15 2 "Lower parts of the calyx with hooked hairs; mericarps shiny" Myosotis 2 "Calyx without hooked hairs; mericarps variously sculptured but if smooth not shiny" 3 3 "Fruits entire, rarely with shallow ridges or grooves" 4 3 "Fruits deeply 4-lobed" 6 4 "Pedicels 0–2 mm long" Heliotropium 4 "Pedicels present, but if less than 3 mm then with glandular hairs" 5 5 "Woody shrubs or shrublets; hairs on leaves without a multi-cellular broad base" Halgania 5 "Herbaceous plants but often tough; hairs on leaves with a multicellular broad base" Trichodesma 6 "Fruits with hooked spines or with a swollen rim around the compressed outer surface" 7 6 "Fruit variously sculptured but without hooked hairs and/or a swollen rim around the outer surface" 9 7 "Attachment scar on the mericarps from the lower third to the apex; gynobase slender and pointed" Omphalolappula 7 "Attachment scar on the mericarps short, either below or above the middle; gynobase short and acute" 8 8 "Attachment scar of the mericarp between the middle and the upper third; rim around the outer surface of the mericarp thin and erect" Cynoglossum 8 "Attachment scar of the mericarp between the middle andthe lower third; rim around the outer surface swollen and/or incurved" Embadium 9 "Mericarps with a rounded apex and vertical ridges; attachment scar basal and with a raised ridge around it" Borago 9 "Mericarps constricted at the apex into a beak or vertical ridge; attachment scar on the inside or if basal then without a raised ridge around it" 10 10 "Mericarps asymmetrical, with a raised vertical ridge on one side; attachment scar with a raised ridge around it" Anchusa 10 "Mericarps usually symmetrical; attachment scar without a raised ridge around it" 11 11 "Attachment scar on the inside, small, elliptic or lanceolate" 12 11 "Attachment scar basal, broadly ovate to round" 13 12 "Inflorescence recurved with flowers densely arranged in 2 rows" Amsinckia 12 "Inflorescence erect, with flowers widely spaced and spirally arranged around the central axis" Plagiobothrys 13 "Mericarps densely tuberculate; fruiting monochasia with fruits widely spaced and spirally arranged around the central axis" Buglossoides 13 "Mericarps with a few scattered tubercles to almost smooth; fruiting monochasia with fruits densely arranged more or less in 2 rows at least in the upper two-thirds" 14 14 "Leaves 2–5 mm broad" Neatostema 14 "Leaves 8–60 mm broad" Echium 15 "Annual herb; inflorescence a densely coiled cyme; capsule with 1-2 seeds in each locule" Phacelia 15 "Tree; inflorescence an open panicle; capsule with > 200 seeds" Wigandia