A photograph taken near SCP-XXXX's immediate perimeter

Item #: SCP-XXXX

Object Class: Euclid

Special Containment Procedures: Due to the post-Urban location of SCP-XXXX, it is to be restricted from civilian access. Satellite and observation posts are to monitor the grounds of SCP-XXXX continuously while keeping an electric fence that separates SCP-XXXX maintained approximately 450 meters out of SCP-XXXX-1 instances. Due to the unpredictability of SCP-XXXX, no organic lifeforms are to come out or enter SCP-XXXX unless approved by Level-4/XXXX personnel under testing conditions.

During White or Black responses, observation posts are to keep pressurized locks on doors as well as windows. After these events, all anomalous entities that have been produced and evicted from SCP-XXXX are to be neutralized immediately.

Description: SCP-XXXX is a forest near ███████ █████ State Park, Ohio. Discovered on ██/██/19██ by the Foundation after the deaths of █ people caused during a storm above SCP-XXXX as well as a number of disappearances presumed to be caused by SCP-XXXX.

SCP-XXXX is the origin of SCP-XXXX-1 instances, plants of the family Arborvitae in the species Thuja occidentalis. Surveillance has shown SCP-XXXX-1 reacts to specific weather stimuli. These responses are often unpredictable and result in lethal combinations under multiple stimuli which fall under multiple categories as listed below.

Clear: SCP-XXXX is always under Clear response when there are no weather or external stimuli in the range of SCP-XXXX. During this time, SCP-XXXX-1 will not excrete any chemicals or react in any way specific to its anomalous properties besides reproduction.

White: The White response occurs during the arrival of organic lifeforms in range of SCP-XXXX-1. During this response, SCP-XXXX-1 will excrete the chemical compound █████, as well as radiation. How this does not terminate the plants by either the storage or excretion of the chemicals is unknown. This often results in the termination of immune system cells as well as the progressive degeneration of the organic lifeform, leading to death.

Grey: The Grey response will occur under the weather stimuli of either storms or fog/high-level humidity. SCP-XXXX-1 will lift it branches upward revealing its thorns which will begin to excessively grow outward from SCP-XXXX-1 and reveal pores. These will excrete chemical compound █ which encourages the growth of SCP-XXXX-1 and the death of nearby foreign plants excluding grass. This chemical is toxic and generally prevents breathing.

Black: Only two Black responses have occurred since the discovery of SCP-XXXX. They result in the absolute disappearance of the personnel and is usually triggered by the attempted deconstruction of any SCP-XXXX-1 instances. The process of the Black response is [REDACTED]. The construction of various anomalies (hereby classified as SCP-XXXX-2) and mutations amongst SCP-XXXX-2 must be neutralized immediately on verification due to their reality-bending properties.