Carpets of the native form of Kidney Vetch (Anthyllis vulneraria subsp. vulneraria), strictly prostrate to prostrate-ascending on weak stems.
Masses of Greater Knapweed (Centaurea scabiosa var. scabiosa), an uncommon plant locally.
Good swathes of Yellow-rattle (Rhinanthus minor subsp. stenophyllus), a subspecies more typical of calcareous fens further south but less fussy in Yorkshire where the local climate is more accommodating.
Perforate St John's-wort (Hypericum perforatum) which many will not consider that exciting, but I'm increasingly of the view that its not that common. I suspect it is widely over-recorded, especially in Yorkshire, for its hybrid Des Etang's St John's-wort (Hypericum x desetangsii). Recorder's shouldn't assume Perforate St John's-wort unless they have not checked the sepals carefully for the absence of teeth. By default it is therefore a plant that should only be named when in flower.
Moving down slope to the wooded margins of the SSSI provided:
Orange Whitebeam (Sorbus croceocarpa)
The largely sterile hybrid between Dewberry (Rubus caesius) and Raspberry (Rubus idaeus) i.e. Rubus x pseudoidaeus.
And, surprisingly, a highly scented hybrid Mock-orange (Philadelphus Lemoinei Group).
Into the woodland proper was a welcome plant of Soft Shield-fern (Polystichum setiferum), an uncommon species in the lowlands to the east of Leeds but one which is increasingly being found in small numbers in woodland habitats.