3 old plants at this precise location, plus 4 juvelines (probably a year old) and numerous seedlings just a few cm high (noticeably no bipinnate leaf on even the smallest plant and leaves not obviously rostriform - pic 3). See also 12009 and 12011.
One very old plant, recently died. I've found old dead plants elsewhere with youngsters popping up around it. No new plants growing beneath this one yet. Worth a follow up next year to see if new plants germinate here. 3 more plants nearby (12010).